Wordpress Use the settings API

Wordpress add a sub menu to your plugin

php redirect

quick and simple php redirect to a url

Disable the ACF Warning message in wordpress dashboard

add code to functions.php

load a page as a menu in wordpress

echo the page id from wordpress

extract a wordpress menu using its id

when you edit the menu in wordpress you can check the url, and it will have the id to extract in the following string: /wp-admin/nav-menus.php?menu=12

Wordpress template with fixed sidebar in flex

add a page template in a wordpress theme

duplicate the page.php to a new php file usually with the template name as the file name with no spaces file in wordpress theme and add the following line to the top.

find a custom data attribute in simple html dom

locate the div based on a custom data attribute, in this case the data-field="regularMarketChange" full docs

display a subnav for the current wordpress page

good if you are doing custom page work and need to show the current sub nav somewhere other than the main menu. 

How To Install SQLite on Ubuntu 20.04

  Bash sudo apt install sqlite3 and to get it working with php, pick your version of php and change the following Bash sudo apt-get install php7.4-sqlite3

sqlite escape string

simple sqlite php escaped string https://www.php.net/manual/en/sqlite3.escapestring.php 

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in simple_html_dom.php on line 722

Initial thought on this error is that there is a version issue. This only happened on version 1.11 for me, will check what other version i have.  Yep not sure why but the older version of php ht..

function causing slow load time

i had this function matching a uid using a binary select query. The sites were loading in about 8 full seconds according to my load timer, sometimes up to 12 seconds! So this was running on old site ..

show views list function

list items by the view count

list page links function list_page_links

list top number of page links from selected table test run time on db of 4k items.  select * from pages where publish = 'publish' order by insdate desc limit 10 10 rows (0.005 s)

error Warning: getimagesize(uploads/583517f49099a.jpg): failed to open stream: No such file or directory in SimpleImage.php on line 1198

i think this error is just caused by a missing file. But there should be some kind of error checking here to not crash the whole site just due to a missing image file. this error is quite hard to fin..

Deprecated: parse_str(): Calling parse_str() without the result argument is deprecated

I had this error on a function that i was not even sure i was calling. This was on some old code i was testing for an old site, i must have fixed this error on a never version of the function.  ..

Return a file extention from a string

This php function returns a file extention from a string.  I think it will only work if the string does not have any additional . in it.  I think a better way to do this function would be ..

getcwd usage in php to get the current working directory for file includes

the builtin function getcwd in php gets the current working directory, this can then be used to include files or check the current working directory rather than manually adding the directory into your..

write to file php

shorten string php, string length php, clip string length php

I'm pretty sure i have done this function before but i cant find it due to the keywords being wrong! Here is a function that takes a string and shortens it and adds .. to the end, with the rest of th..

return author title from simplepie rss atom feed

i was just returning the author from this, and for some reason it returns a number. $class->$target_item = $item->get_author(); where you also need to pass the get_name function to this to ext..

get file name from path name in php

returns the file name from a full url or path in php, using basename function. 

imgur upload from php

function that takes an image and uploads it to imgur using a client api id, and then returns all the data. i did this one ages ago and did not make it into a function, but this version should work as..

simple pie get link from enclosure item in simplepie rss feed

i had an item like this in a rss feed, and i wanted to grab the enclosure url, took me a while to figure this out for some reason even though the solution is quite simple.  PHP <item> &l..

simplepie error : XML or PCRE extensions not loaded!

using simplepie it does not load the target feed, and does not display any errors. Just nothing.  if your feed is init'd with $feed check for feed errors with:        $feed ..

loading a non processed item using the load_from_fields_array function

Example using the load_from_fields_array function  to load a single item where the processed value is equal to FALSE.

simple file cache and check in php

just a quick cache bit of code, may need tweaking to actually work... i just added it here as i thought it was re-usable.  Also requires simple_html_dom library.

loop through $_GET in php

I thought this one would be something like PHP foreach($_GET) { echo $_GET; } but actually as $_GET is an array you need to do the $key and $value loop like this PHP foreach ($_GET as $..

php strip non numbers from string - remove all non-numeric characters from a string

this will remove all non alpha numeric numbers from a string. in this example it returns: 123456 from $1234.56x  

codemirror with auto preview window

this should auto preview html code into the preview area using code mirror

save string to file php

save the contents of a string to a file This function is identical to calling fopen(), fwrite() and fclose() successively to write data to a file.

get string between other strings function php

So it turns out that i have had this issue before of finding a string in between other strings and made a function for it that i forgot about. 

using preg_match to extract text from elements

using preg_match to extract specified text from elements I also tried this search "if you have the start and end of a string extract the middle with php" as thats really all i need it to do, i have t..

encode spaces in items passed to url to %20 not +

I was using urlencode in php and it was encoding words with spaces into word+space rather than word%20space This can be resolved by using the function rawurlencode rather than urlencode.

php validate email function

php function that can be used to validate an email address string

php function load as table - load_as_table

Load data and add into a table format by passing in the required fields as an array.  Example Result Live Example https://kruxor.com/view/nz_postcodes/5KrBW/zurich-place-weymouth-manukau/&nb..

turn on or off error reporting php

Allows you to turn on or off errors in php, like the following: Warning: SQLite3::query(): Unable to prepare statement: 5, database is locked Warning: SQLite3::query(): database is locked in 

get json with php from a url and display it

yep its that easy. this code shows getting the contents from a json request api. var dumping all of the results and extracting one single item by its array key and showing it. 

Install PHP without Apache on Ubuntu

I was actually about to do some coding and then i got distracted with this annoying error on vscode. I keep getting this error on vscode: I had been ignoring it, but i thought fine, ill fix it and..

php convert number with k on the end to full number

I have a function that converts raw numbers into shorthand or human readable numbers, but was wondering how to convert these back if they are stored in that format, and also makes it better if you are..

extract variables from url string php

How do I extract query parameters from a URL string in PHP? You can do this using the parse_url function or parse_str function in php.  Say my url string is:  $url = "https://kruxor.com..

Invalid argument supplied for foreach()

Fix for Warning: Invalid argument supplied for foreach() in /var/www/html/pages/seo-meta-tag-search.page.php on line 204 As this is just a warning, i may not have noticed it originall..

Warning: file_put_contents(/var/www/html/bundle/responsive-viewport-meta-tag-responsive-meta-tag/index.php): failed to open stream: Permission denied in /var/www/html/pages/update.page.php on line 167

i think that the content in this location is not writable by php so need to change the permissions too fix this error.  This should fix it, as it was not correctly write permissioned Bash cs /..

Warning: Undefined variable $class_single_hero in /var/www/html/pages/section.page.php on line 177

This warning was caused by a dot in front of the equals $class_single_hero .= $code->hero_widget($t_uid = $class_single->uid,$t_class = $p2); Fixed version Easiest way to fix this is remo..

Search Duplicating Bugs

Still having issues with the word above duplicating, not sure why.  Search Page PHP - Get Search Value $search_value_encoded = htmlentities($search_value); Check for Search value, and then ..

Get current URL and add a share to facebook share button with it

Combines this Facebook HTML for Sharing a Link and encode url with javascript this to make captan planet! Or... makes a share this post to facebook button. 

Facebook HTML for Sharing a Link

just the html for the link, that is all. Replace kruxor.com with your url to share E.g: share to facebook

git basics - git init, git commit, git all, git *

create a new repository git init the following code can be typed in a terminal window, once you have installed git for your OS. This will create a directory called git-test assuming you already hav..

No 'Access-Control-Allow-Origin' header is present on the requested resource.

add this to your php to allow requests from any source Access-Control-Allow-Origin php header

Fatal error: Uncaught Exception: Required extension GD is not loaded.

How to resolve the error: Fatal error: Uncaught Exception: Required extension GD is not loaded. This Error is ususally due to a php library or script requiring the GD php extention.  On ubuntu ..

php check if a class exists

check if a class exists in php. this can be used rather than assuming the class exists and then causing an error You can run the class_exists function on the class before loading it with the followi..

Converting PHP to Javascript for State Extraction by numeric value Australian State Names

I cant even remember when i originally wrote this php function, but now i need to have it in javascript, should not be much change to it to get it working.  The original function takes an austra..

convert a string into its html entitles using php htmlentities function

this takes a html string such as the following example and converts it into its html entities. it will take a character such as < and convert it into &lt; so that the string is not parsed as h..

generate view statistics widget in php class extend

How i generate the Week, Month and Year view statistics widget for this site.  Views Widget Function This generates the widget based on the views data. PHP // views widget /* using fi..

Uncaught Error: Call to undefined function mb_convert_encoding()

I was getting this error when calling a function in the readability php class, on a new server for code that worked on the old server. Uncaught Error: Call to undefined function mb_convert_encoding()..

get the subdomain name from the domain string in php - sub domain

returns the first part of a domain string, for example moo.kruxor.com will return moo

card.html template

a card template with title, content and a mb-3 for bottom margin for usage with the php template system.

making the search page nicer

Sometimes i dont even notice things like this, as i look at them all day and go, ah yeah thats a search box. I forget that all these things can be fixed.  Anyway, even just adding this form to a..

fixing error Call to undefined function simplexml_load_string

usually the error "Call to undefined function simplexml_load_string" happens when the php xml library is missing from your server. You can install the xml php library with the following command, repl..

make a nice readable date using a timestamp string function make_nice_date

handy if you have a timestamp like this: 2022-01-10 00:12:42 and want it to look a bit nicer. like this... 12:19 am, January 10, 2022

get the content of a url get the content of a link with php and test if the result is empty

Where $import_url is the target URL. 

extract meta attributes with simple html dom

pass in the url as import_url and it will search for the meta keywords tag and echo the result.

php check if url is valid with filter_var

check if url is valid using filter_var and return a message if the url is invalid rather than continuing

simple html dom check if an attribute is set and has a value

get php to validate its self with php check syntax

Did you know that php has a syntax checking function built into it? Well it does and this is how you can use it to check your php files for errors, rather than just running them and hoping for the be..

Spam IP Database and delete button

The Background and Reason for the SPAM IP Database and Delete I actually wrote up half of this article and was still testing the function and lost the whole post, which will teach me for adding it st..

php save csv from array to file

php export csv from string to browser download

exports an array to a csv string and returns the result in the browser

convert json string to a php array

takes a json string in php and converts it into a php array using the json_decode function.

how to json encode an array in php

how to decode xml in php

how to decode xml into an array in php Here is a full example taking an xml string and converting it into a php array. 

php get file and save it

gets a file from a url and saves it to your local server

youtube search api request function

This function requests a search from the youtube search api, and searches the text in the snippet for the seearch string. You can get your own API key for this from the google developers console. They..

list all array json function list_all_array_json

I wrote this a while ago, and i always forget the complex functions i write so ill add it here.  This loads all fields and then returns them as json. 

php function to remove the query string from a url

i was reusing this a few times manually and thought i would save my self a bit of time by just using the following function which returns the same full url, but removes the query string from it. ..

using php parse_url function to remove the query string from a url

I recently had to remove the query string from a url, the bit after the ?key=1 or whatever is after the actual url.  I initially thought i could just use a explode function on the ? which would ..

add every value in the load_array array into the out for testing

quick foreach to add every variable and variable name into out and return it. good for testing.

Fix for PHP Warning Trying to get property '*name*' of non-object

i was getting this error when checking parts of an object that were sometimes set and sometimes they did not exist depending on the values.  Warning / Error : Warning Trying to get property '*na..

write the contents of a url into a file with php

save the content of a url into a file with php using the following command. This grabs the $url and saves the content into the file my_file.html  

sqlite fetchArray into another array

was having an issue when trying to return a multi array using sqlite over multiple rows. Stack Overflow Inspiration  I tried a few of these but it was not incrementing key, and also it was only..

php return json header and content

sets the header to json and returns a simple json formatted array.

php get file extension from a file name

this function returns the file extention, however if the file name has multiple . in it this will return a false value.

php post data back to a url with a function

this function uses curl to post back data to a url, this acts like a _POST form request from within a function. Function usage: $url the url to post the data back to e.g: $url = "https://kruxor.co..

generate random username function in php

a function that takes several random words and creates a user name from them. This will generate a user name with between one to three words and a prefix if prefix_show is set to true. usage generat..

list_all_array an early stages of list all function that uses an array to pass in main variables

I think this is more neat than passing in individual variables into the list_all function, seems to work ok so far.  Still in early stages of this listing function, more needs to be built into i..

replace singular variable assignment with an array loop and variable variables

I found this useful when passing in an array to a function, rather than assigning all the variables in the function manually from the array just loop through each item in the array and asign them that..

using the $_SERVER['HTTP_REFERER'] to check referring pages

shows how you can display the contents of the $_SERVER['HTTP_REFERER'] tag in php to show referring pages i read in an article that this is stripped out of HTTPS requests, but it seems to still be wo..

Changing the default hero image based on the category name [not yet done]

This is more of a todo item, at the moment the hero image uses the same image for every post unless a hero is specified for each, i would also like to set the default image per category so if the post..

timeline class and function

this is a class extend that generates a timeline based on structured data and order's the items by year decending. this code will not work out of the box as it has other requirements, but it is a goo..

php html template class system

just a simple php templating system to extract your html files from within the php code into external files, makes things (or your code) a bit neater.

list group card template

list group card template for usage with the php template class

views list function for checking what views have been made on the current week

this is related to the views class that i added with monthly week number and yearly views, this is the function that i use to extract the top viewed pages for the week num, month num and year num. I ..

load array load all items from an array while in a sqlite load sql loop

i find this useful when loading a bunch of items in a class while looping through data, rather than assigning variables manually i just add the array of item names into the class to begin with and the..

Idea: Google Font Dropdown Selector Code

just an idea at the moment, a dropdown list of google fonts and when selected it loads that selected font using the @import css tag.  Loading the fonts Gist : not tested https://gist.github.com..

create a 200 character summary from a longer html string

this is a quick function that can create a 200 word plain text summary from a html string. Also added the option to specify the char length of the string.  Function function create_summary($htm..

twitter social sharing meta tags

I had done this one so many times on client sites I actually forgot that i had not applied it to my own site! Doh! Anyway this is the tag setup i use for adding the title, url, author and featured im..

using strlen to check the length of a string and do something about it

in the following code i use the php function strlen to check the length of a string and then add an if statement to check if the string is longer or shorter than the required length. 

using wp_nav_menu to show a custom menu in wordpress

found this quick code snippit here, its not working just for reference of what the array items do.  Here is how you would display the menu called "Projects" PHP         $..

get and show the featured image on a wordpress page template

this will extract the featured image on wordpress page if you are using custom page templates. 

link to a custom style sheet in your theme directory wordpress

this is how you can include a manual link in your wordpress header file with a link to a stylesheet called theme.css then if you change theme names or something it will still link correctly, rather t..

wordpress show page content on template file

shows the page content on a wordpress template file

show post content on template wordpress

show the post content on a wordpress template

wordpress add a template file to your theme

this is the basic layout of adding a wordpress template php file to your wordpress theme. good for custom theme pages This is a really basic template with just the header, but once added wordpress w..

How to record your own page views with PHP, and make them into weekly monthly and yearly charts

Building a better Simple Page View Counter Currently this site has a very basic view counter on it.  Here is how it currently works. Load the page, function checks if the page has a existing r..

load from fields array php class function

this class function loads from multiple fields from an array, much easier than passing in a bunch of variables into a function nice and clean, the only issue is you need to remember what fields to add..

get the current week as a number with php

retrieves the current week as a number from 1 to 52.

creating embedded php code from a database field

i actually dont know why i didnt think of doing this earlier, i already have the php code field in these code articles. I thought why not embed this code into an actual file and then run it as a test..

test php bundle write

just testing

check if a file exists with php

checks if a file exists in php returns true of false

check if the file is a directory or check if the directory exists in php

this checks if the file is a directory or if the directory exists

get the current working directory in php

gets the current working directory... in php

create directory with php create folder with php

i thought i had already done this somewhere but i guess i didnt. Anyway here is how you can create a directory with PHP. PHP mkdir("directory_name") yep its that easy just make sure you are in the..

how to bundle css files together using windows or mac

so i was wondering how to do this the other day using some modern end tools, and i found this way just do it straight from mac or windows.  lets say i have these css files main.css style.css..

check if a product already exists by its md5

load random videos module using template

load 3 random items and extract the video url, and use the youtube function to create a thumbnail and link to that video page

PHP/SQLite - Load Random Item

loads a random item from the current class / db using sqlite.

still more comment spam

this is getting annoying now. so much spam. i already have the google recapture, but spam is still getting through. who runs this stuff, bots i guess. annoying.  update: 10 August 2021 Still..

split a string into links using the comma

this is a common function for some field data, lets say you have a string like this. category one, category two, another category in one field or string but i want it to display like this category ..

extract youtube image from video url

showing how you can get the image wallpaper in different sizes from a youtube video I used to have this tool a while ago, it just passes the video id and extracts the images and also can produce the ..

simple php ip blocker

just to quickly block annoying ip addresses using an array and $_SERVER['REMOTE_ADDR'] so i woke up this morning to find 200 comments from this spam ip, here is a simple script that will block that i..

preg replace clean a string only allow a-zA-Z0-9 characters

allows only a-zA-Z0-9 and spaces

weird search results being recorded

i noticed some weird search results being recorded like this: the search function should only be recording a result if it finds a result, so this should not be added unless it can actually find thi..

get last month as a number with php

this will get last month and last month as a text month e.g: 06 and June

verify the google recapture server php

i was still getting quite a bit of spam even after using google recapture v2 and i think this is just as i was using the javascript only version, which disables the submit button if the capture is not..

use a list group for listing by category page [todo]

change this to a list group, should make it neater. Page to update: https://kruxor.com/list-category/code/  so for some reason this is listed using this function PHP $list_wiki_menu = $clas..

Comments Listing should be a custom list rather than using search

For some reason when i listed the comments under posts on this site, i used the search function and then searched for the related uid, which maybe was easier at the time than adding an additional cate..

hero widget header - creates a nice looking hero item from a target uid and class

this creates a "nice" looking hero widget, just wanted to create something that looked decent and had an attached background image, surprizingly annoying to link items together. For some reason i kee..

Latest from Code Widget

What generates the Latest from Code Widget? Code PHP $widget_latest_list = $class->list_all(        $start = 0,        $max = 10,      &n..

rtrim strip white space or strings from the end of a string

good for removing trailing , or any repeating character from the end of a string

get the current month as a number

this will return the current month as an integer

show the difference between two dates in years, months, days, hours and seconds

i modified this code into a function that also detects if there is any values in each item before adding it to the text. 

counting the occurrence of words in a multidimensional array

array sorting example The array Array ( [0] => Array ( [0] => Some [1] => great-looking [2] => special [3] => editio..

write string contents to a file with php

this will create a file called my_file_name.txt in the current php working directory usually this is the same one that the script is running in and write the text yay! into that file if the file al..

unable to access the $_FILES when submitting a form php

I was getting this weird error when submitting an image for a form upload and i could not see why the $_FILES was not set as this is where the files go from a $_POST back form in php. The error i was..

check column exists in table sqlite

this will return 1 if the column name exists in the table or 0 if it does not

show all methods or functions in a class (class function version)

add this to your class to show all its methods including this one... sorts the array ascending by values so should be sorted in a-z

show all methods (functions) in a class

this will show all available methods or functions within a class, once they are in a class they are called methods for some reason. print functions, show all functions, methods in a class, show met..

adding an item to an array with php

how to add items to an array in php here is a working sandbox version of this code: sandbox. 

passing in arrays to your functions rather than using variables

this is probably an old technique, but i discovered it the other day when i was playing around, and i thought wow i should do this to all my functions, i cant see the downside, apart from having to re..

check server https or http value in php using $_SERVER

this will check the server method and if its https assign the value to $server_http_val so this will either be "https://" or "http://" good for generating full url's for your domain. 

Remove background image php with image magic

untested research on removing background and making it transparent with php

get current url with php

this checks is $_SERVER['HTTPS'] is set and $_SERVER['HTTP_HOST'] $_SERVER['REQUEST_URI'] to construct the current url

list a functions variables or arguments

i think this has to be used within the function to get its arguments, i have not tested this one yet.

php list all the functions in a class

this should return in an array the methods or functions for a class

php print an array nicely

this works for variables and arrays

add a toast alert when logging in with half moon

example of adding a document dom ready wait and then the script that launches a new toast message just adapting a php cms using halfmoon as the ui, its quite nice.  a bit bright in non dark mod..

dont use md5 for password hashing using password_hash and password_verify

apparently md5 is not the best method for password hashing, you should use the php functions  password_hash(); and then  password_verify(); to verify the hash matches PHP password_hash..

php basic page router

this php page router while pretty basic does the job for this site. it takes all the query string and splits it with the / into $p variables you will also need the following nginx or similar page rew..

minutes to decimal calculator javascript version

trying to do a more simple version of this post. https://kruxor.com/view/code/NIjAQ/quick-tool-to-convert-time-into-decimal/  the php version requires post back to the server, so i think this c..

checking for spam comments function

with this function, you can scan through your incoming comments and check them for keywords the function will scan through the comment text and then provide you with a score as you get more spam com..

change file permissions to -rw-rw-r--

When adding a new php template file, it adds it under the www-data user with the file permissions set to -rw-r--r-- so its not remotely editable. Use chmod 664 to change it to -rw-rw-r-- chmod 664 ca..

calculate a percentage (dec) difference based on two numbers

I wrote this function a while ago, but im not actually sure what its suppost to do, so ill test it here and see what it returns. I think after running this function it returns the differents in perce..

Adding HTML Templates into TinyMCE Editor

This can be very useful if you are using the tinymce editor on your site and want to be able to add simple or complex html templates. Here is how to do it: Add this to your tinymce init Javascrip..

Testing

test <p>test</p> x .my-selector{ value:1px;} HTML <table></table> CSS .css{} Javascript function test() { console.log('test'); } PHP a = 1; x x

change images to upload file also to imgur [reported]

may also create a seperate db to store imgur image links? can update the source_link in the current images to link to the imgur version. I remember i did this a while ago but cant remember the code ..

install codemirror for textareas [added]

i think rather than editing all the code using just a plain textarea element it might be nice to have codemirror format them nicer https://stackoverflow.com/questions/21085170/codemirror-how-to-insta..

add a youtube video preloader function, lazy load youtube [fixed]

I noticed that this list page: https://kruxor.com/list/rs3_efficient_skill/ Loads about 29 (well exactly 29) youtube video embeds and was wondering if there was an easy way to replace these iframes w..

explode a string into an array

This uses the php explode function to split a string into an array based on a delimiter character. I always forget which order this goes in.

checking the current url and then marking a link active based on that url

i want a script that can check the current page uri and then match it to a list of links to be able to add an active class that survives page reloading So here we go... 1. Get the current page url. ..

using gzdeflate on a string php

yes you can actually run compression on a string to save space and then uncompress it at the other end...

linking search results to view pages [finished] 🤣

I was thinking it might be useful to link the search term to the page, so that it can be found more easily using that search. For example, Link this search text (somehow) to the post page and display..

make labels or badges look better

How to make these look better. The labels are used in the list items to show a small version of the category or sometimes the view count for a list item. How they look currently Dark Mode Ligh..

include tinymce only if a user is logged into the site

For google page speed i had an issue when every page was loading tinymce, which is quite a large script. I only actually use this script when editing pages, so this is the change i made to only inser..

adding pagination to custom wp_query

you can add this to your custom wp_query making sure your query also has the paging passed through to it

add paging to wp list query

this is a raw template with list query for specific category names and also includes paging, if the post number is greater than 8 posts in the included categories. 

list items from blog and filter by category name

this is a bit raw, but shows the $args = array('category_name' => 'Categy Name 1','Categy Name 2','Categy Name 3' => 8, 'paged' => $paged ); for querying the category_name to do multiple pro..

Quick tool to convert time into decimal

I needed a quick tool that can convert say 20 minutes into decimal, as im doing this a lot these days. Here is what i come up with, well you can google it as well and that works, but this form is a bi..

match a category id in wordpress and then add styles just for that id

this is in template-parts/content.php which may be different based on your theme or version of wordpress.  you can locate the category id in wordpress by going into categories and then clicking ..

generating all css colours with php?

I was looking at doing this just to generate all css colours, i think the only issue is there is a lot! You can do this with rgb(0,0,0) all the way up to rgb(255,255,255) how many seperate colours is..

php countries array to dropdown form element

here we generate a form dropdown from a php countries array using the country code as the name of the form option

get the current post id from content.php

this should assign the current wordpress post id to $post_id, from template-parts/content.php if you want to show it, just echo the $post_id

search a zip file with windows command prompt and 7zip

if you ever need to search for a file in a zip file this is how to do it (in windows). Also you will need to install 7zip Open a command prompt CTRL+R and type cmd cd C:\Program Files\7-Zip 7z l c..

Fix for Fatal error: Uncaught Error: Call to undefined function file_get_dom() simplehtmldom simple_html_dom

This error is caused due to a function name change in the simple_html_dom.php library if you are using an older one and upgrading to the never version, you can see it in the change log here: https://s..

Fixing PHP SQLite database is locked warning - Unable to execute statement: database is locked

Apparently this error is caused by not closing the database after using it.  Warning: SQLite3::query(): Unable to execute statement: database is locked. You can close the database using the fol..

simple usage for php password_hash

password_hash is used to generate a hash for a password. using this in its simple form can be good for generating a hash from some text like the following code.

What is Core?

17 Aug 20 core is php content management system where the content is editable from the front end of the site, so there is no real back end to this system. i designed it to be easily extended so every..

change string to capital words ucwords

This will change an upper case or lower case, or mixed case string to uc words. Example with this page title

change upper case case string to lower case (uppercase, lowercase)

this can change a lower case or any case into upper case using the str to upper php function Example

convert a string to uppercase with php

use this function to convert a lower case or sentence case string into its uppercase form

php substr return part of a string

good if you want to .. return part of a string

php countries array

country codes to country names array in php

loading content into fancybox modal using ajax

This loads content into a fancybox modal using an ajax request so you can specify a url to load into the modal when the button is clicked

Create a admin main wordpress custom menu item

javascript isset equivalent

i was just looking for an equivalent to the isset in php for javascript, i was initially using .length but this can still cause errors so i found this solution. if (typeof my_var !== 'undefined') {}

check if a timestamp is older than one hour

this will check if the timestamp string is less or more than one hour old.

Add a post date to your custom wordpress post listing

this is an example using: get_the_date: this one gets the post date the_excerpt: which gets the .. excerpt or summary text from the post and get_the_post_thumbnail_url which gets the image from th..

making var_dump look nice

i was var_dumping an array the other day, and it comes out like a massive string you cant read. a fast way to make this readable is just to add some pre tags to it.

Nginx Server Block with Rewrite

Nginx Server Block with Rewrite Here is a basic nginx server block with rewrite to the index.php file. So it takes all the parameters and passes them into the index, into the variable $p or $_GE..

pulsating dots - glow glowing

a column of pulsing dots using css keyframes animation

load a youtube video in a fancybox modal

With just a couple of lines of js and html you can load your video links in a modal lightbox. Get the latest version of the fancybox scripts (just the links) from here: https://cdnjs.com/libraries/fa..

using css linear gradient for background overlays

a few examples using css linear gradient for the background

wordpress get page content to display on template page

gets the page content and displays it on a template, this must use the post loop as shown in the code.

ES6 Nested Object Example

extracting variables from a nested object with new variable names

ES5 vs ES6 Object Example

here you can see the syntax changes between ES5 vs ES6 Object declaration, you can still access the values in the same way.

Use Recursion to Return a Range Array

using recursion to return a range array between the two numbers added

Use Recursion to Count Down

just a slight change to the count up version of this, using unshift rather than push to the array.

Use Recursion to Count Up

Get the documentURI with JS

This function gets the current document URI assigns it to the variable documentURI so it can be reused and shows it in the result area once you click on run function.

jquery document ready with foundation init as well

here is a jquery document ready that also loads the foundation js library. im not sure if the document foundation needs to be loaded in the document ready, but this way seems to work.

center something with css not using flex

This is how you can center something in another element if you dont want to use the flex method.  You will need the relative position on the outer element, and the absolute on the center one unl..

php mysql table exists function

this checks if a mysql table already exists in the selected database and returns true or false

how to display a php file as html with php

you can use the following function to show a php source file as html

jquery add a click function if the window size is greater than target_width

this function will add a click event to the target if the window size is greater than the target_width

js using recursion to create a range of numbers

in this we will create a function that calls its self to add to an array a range of numbers

php convert date now into a sql timestamp

an easy way to get the current date from php into a mysql or sql timestamp format, this uses the server time

add google captcha to enable and disable a form button

This will check if the google checkbox is checked and then enable or disable the form button depending on the outcome. This is just a basic version of this check, you should also check that the captu..

Generate a Random User Name

a function that will generate a random user name from a list of user names

Using Node to get a Web Dev Environment with livereload up and running

this is how i get a live reloading dev environment up and running on my windows pc's using node , npm and browsersync.

Using the Spread Operator to Evaluate Arrays In-Place Tests

My tests using the Spread Operator rather than the apply function. In the 1st function show_max_array i use the apply operator to convert the array into comma seperated values. In the show_max_array..

Using the rest operator to pass in a variable amount of arguments

If you don't know how many parameters you will need in your function you can use the rest operator to pass them in. ...

Default Parameters for Functions

You can pass in default parameters for functions so that if the function is used with no parameter it will use the default one.

Complex Arrow Function Example

Here is an example using a Complex or Higher Order arrow function, which slightly reduces the amount of code lines used. This should return the square root of all positive integers passed into it.

Writing Arrow Functions with Parameters

you can pass parameters to arrow functions as well as shown in the following demo, these functions are only meant to be used once where normal functions can be re-used.

using arrow functions to convert small functions into one line statement functions

in this exercise i will take a function variable and write it in one line using the arrow function

Prevent Object Mutation

This shows how you can lock an object so its content cannot be modified. if you comment out the line Object.freeze(my_object); it will allow it to be modified again.

Changing an array declared with const

a const means that you cannot re-declare the variable name, but you can still mutate an array content that is declared as a const. so you can see in the following example that even though the array is..

return a state name from an australian postcode

this will return an australian state code based on the postcode, so you can enter a valid postcode and see which state it belongs too. e.g: 2000 should return NSW

using let and const example

This example uses let and const rather than just vars, let can only be declaired once rather than overwritten like vars and const is a read only variable so it cant be changed. 

using let rather than var

Using let rather than var and use strict can avoid some overwriting of variables i will write a function here that shows how let throws an error. This function now gives an error in the console. Uncau..

Use Multiple Conditional (Ternary) Operators

I actually find if then statements much easier to read than these ones, but these seem more efficient. 

js - Use the Conditional (Ternary) Operator

this statement can be used instead of if this else that statements. to me it makes it look a bit more complex when reading it. this is the basic syntax. condition ? statement-if-true : statement-if-fa..

Use the parseInt Function with a Radix

This is the same as the parseint function, but you can also specify a base for the number which can be between 2 - 36. 2 is binary. Zeros and Ones. I think base 10 is the normal numbering system, but ..

Using parseInt in a function to return an integer or not

this function uses the parseInt function to return a proper integer or an error code if it can't. So this demo should return NaN for the Not an Int (x1235) and The int for the 00001235. I think that N..

Generate Random Whole Numbers within a Range

My testing for generating a random whole number within a range... 🤞 While the solution here works, it just loops until it gets a random number that is lower than the max, so not sure if this is th..

split a string into an array using split javascript

this will split the string into an array based on the spaces inbetween words. you can split it based on any character, for example if you had words in csv comma format you could use the second example..

get the current url in javascript

this will get the current address add it to a variable and show it on the result element

Custom 12 Grid using CSS Grid

For a while i have been using frameworks for their easy grid systems, like foundation and bootstrap. I guess this is a bit lazy and very bloated as you are loading the full css library and using about..

template for testing and live reloading html files

this is a template that i use while testing flat html files, if you add it to a server it will live reload. this does seem to cause issues depending on the site that is is used on, like reloading all ..

Radial Click Effect

shows the radial click effect like in the material design, so when you click a button it will show a click at that area with a nice animation. Uses CSS and javascript to generate this effect.

Generate Random Whole Numbers with JavaScript Function

generate a random whole number function with test buttons

Generate Random Fractions with JavaScript

generate a random fraction and add it to result when clicking a button

FCC - Basic: Profile Lookup

my solution to the FCC Basic js Profile Lookup, with added results area and button to run the function. json, array

copy a file when the date of the source is newer than the destination

using xcopy and a loop i found this is a good way to make sure that changes in one file make their way across to another location using a windows batch file. this one loops every 5 seconds, i think yo..

Do While Loop

showing how to use a do while loop, i don't use these ones very often usually just a for loop.

get the average of a number list using an array in php

get the average of a array of numbers

get the dimensions of an image with javascript

this will show the height and width of an image using javascript

toggle div function with chevron up down toggle

showing an example of chevron toggles kinda like a manual accordion

form checkbox replacement with large tick using label

this is good if you want to change a form checkbox with the default and show a fancy tick or something else, this will still check the checkbox so will work normally as the form element

apache redirect to https ssl from normal

good if you have apache and access to htaccess file to redirect requests to https version of the site. this one also includes a rewrite to index.php so if you don't need this remove the last line.

IP Address

this uses php $_SERVER['REMOTE_ADDR'] to show your IP address

js function to calculate golf scores

this function will return the score name depending on the par and strokes for golf

compare non equality function

this will check if two values are not equal

compare equality function

this will check if two values are exactly equal

testing equality

showing the difference between == and === operators

PHP Finding the position of a string in another string using strpos

$dot_location = strpos($my_string,"."); The first version of this does not seem to work in all cases, so i have updated this with a working version here.

PHP str_replace - find and replace part of a string

basic usage for the str_replace php function str_replace ( mixed $search , mixed $replace , mixed $subject)

Random string generator function in php suniqid

Here is a a smaller version of the built in php function uniqid() uses letters and numbers and specify the length of the random string.

Whois Lookup

using the disk free space function in php

here is a built in php function that will show the amount of free space available on your server.

create a mysql or sqlite current timestamp with php

just in case you need to create a CURRENT_TIMESTAMP using php, this formats the current date into the following.

Cut a string when it finds a certain character with PHP

ok so lets say we have a string like this: Hi there im a string. I am also part of the same string. And we want to shorten the above string into just:  Hi there im a string. This is what i wo..

validate a url using php with FILTER_VALIDATE_URL

checks if a url is valid

function to create a uid from html

this function converts a html string into a uid or unique id type string, its not actually unique, but its a string that can be used to make the title of something that contains html into a usable str..

calculate a percentage (dec) difference based on two numbers

this function will show you the percentage difference between two numbers

check if a user is logged in using sessions

PHP MySQL vs SQLite Count Items Function

I have been writing a few functions using sqlite and mysql. There are a couple of slight differences which can be seen in this count items_function.

How Many Days Since a Date and other Calculations

Here i calculate the number of days since a certain date in php and use the values for checking how much something costs per day.  Start Date Lets add the date that the item was purchaced. In d..

Date Conversion PHP

Convert 1/1/2011 into 2011-01-01 00:00:00

Generate a random title from an array

give this an array of strings and it will pick a random one to return from the array.

echo todays date and time in a nice format

This will produce some thing like this: 19 December 2018 @ 10:12

Core - File Structure

Core works on the following directory structure: //class//class/extends//css//db//images//import//inc//lib//pages//templates/ all of the core structure is fairly self explanitory core.class.php can..

Generate Sub menu using Core

page load timer class

usage: $page_timer = new page_timer; // at the start of your code echo $page_timer->end(); // at the end of your code.

human_filesize php

function via here http://php.net/manual/en/function.filesize.php#106569

for loop set variables $p1,$p2.. etc as blank - variable variables

this will loop through and assign the variable $p1 = ""; to each in the loop so it appends the loop number to the variable name so you end up with $p1 = "value"; $p2 = "value2"; etc, rather than h..

sqlite check table name exists

check that the table name exists in a sqlite database, this function it taken from a class.

get current class name with get_class

This will return the current class name, can be used in side a function of the current class object or give it another object name to return. class myclass {function myfunction() {echo get_class($thi..

assign array to variables in a loop

this will assign all items in the array to variables $p1,$p2.. etc. $p = "/1/2/3/4/5/"; $page_array = explode("/",$p); foreach ($page_array as $key => $value) { if($value > "") { ${"p".$pc..

generate a random color rgb code with php

this code will generate a random color every time its loaded using the rand function in php and generate something like this. .random-color { color:rgb(111,222,111); } PHP Code <?php ..

Regular expression breakdown regex preg_replace php

/ - opening delimiter (necessary for regular expressions, can be any character that doesn't appear in the regular expression \( - Match an opening parenthesis [^)]+ - Match 1 or more character that..

replace anything in brackets in a string using preg_replace regex php

Lets say we have a string like this hi there im a string (not really a string). and we want to remove this bit (not really a string) We can do this using the following regex (preg_replace) $strin..

for loop with a 5 increment

$css_out = "";$max_width = "50";for($i=0; $i<=$max_width; $i = $i + 5) {$css_out .= ".m".$i."{margin:".$i."px;}";}return $css_out;

Get Current Page URL PHP

There is a few methods of getting this but here is a simple one. Replacing the http or https manually.  $current_url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]"; Here is a more complex ..

Get the document root path in php $_SERVER['DOCUMENT_ROOT']

I ususally use this one if i am linking to files in the server document root folder rather than specifying ../directory/include.file.php i will use something like this:  $document_root = $_..

remove all of an element in a string &lt;h1&gt;

good if you want to remove all of the instances of an element in a string like if you have a <h1> tag in your string and want to remove it you can use the following code. $additional = "some te..

get text between tags

Using DOMDocument you can get strings between tags Useful if you are processing raw html files with php function getTextBetweenTags($string, $tagname){ $d = new DOMDocument(); $d->load..

sqlite basic sql and loop results

basic loop through sql results using sqlite and php $sql = "select $field_name from $db_table_name"; $out = ""; $result = $db->query($sql); if($result) { while($row = $result->fetchA..

convert all images into base64 encoded

if you have a bunch of html with inline image links this will convert them into base64 images inline. <?php $html = "my html string with multiple image tags..."; $dom = new DOMD..

wordpress change domain in config, wordpress domain config

When moving wordpress sites around the place its usually easiest to change the domain like this. add these to your wp-config.php file define('WP_HOME','http://newsite.com'); define('WP_SITEURL','ht..

read and sort directory contents in php

if you need to read in the contents of a directory in php and sort it by date header('Content-Type: application/json'); $dir = "./html/"; $file_type = ".html"; $out = ""; $files_array[] = ""; ..

uniqid random string

Here is a smaller implimentation of the built in uniqid() function. Good if you want to generate smaller unique strings for url's uniqid example suniqid(5) function suniqid($len = 5) { $..

show response headers from file get contents

this will show the http_response_header when using file get contents, can be useful for seeing what the server is doing. $contents = @file_get_contents($url); echo "<pre>"; var_dump($http_re..

wordpress show the page content for use in a template

if you are using page templates in wordpress and need to show content from wordpress this is the easiest method. This only works for wordpress "pages" not blog "posts". For showing blog posts you will..

file get contents reads entire file into a string

you can use the file_get_contents function to read a file or a web address usage get a url content $homepage = file_get_contents('http://www.example.com/'); echo $homepage; get a file con..

using parse_url to extract parts of a url

Category: PHP the parse_url php function will split a url into an array of url fragments $url = "http://kruxor.com/path/?argument=value#anchor"; var_dump(parse_url($url)); parse_url example ..

basic for loop

I know i always forget this so ill add it here, see if i can remember it. This should count to 10 Out 0 1 2 3 4 5 6 7 8 9 10

try catch test

try and catch example try { //enter code to catch file_get_contents($link); } catch(Exception $ex){ //Process the exception $page_content .= "Unable to process : $link"; }

tell wordpress to use the direct file method if its asking for ftp details

this usually happens if the permissions on the wordpress wp-content folder are not correct or writable. check the permissions are correct: (this is for apache, the user names might be different che..

wordpress enqueue slicknav and slick slider

add this to your theme scripts functions file here is the full one from HTML5 Blank // Load HTML5 Blank scripts (header.php) function html5blank_header_scripts() { if ($GLOBALS['pagenow'] != ..

wordpress include jquery in theme functions

Add this to your themes functions.php file, to include your own version of jquery. if (!is_admin()) add_action("wp_enqueue_scripts", "jquery_enqueue", 11); function jquery_enqueue() { wp_deregi..

copy file

The copy() function copies a file. This function returns TRUE on success and FALSE on failure. echo copy("source.txt","target.txt");

some date formatting just day just month just year

Useful if you need to get PHP to return parts of the date. The date today in number format $date_today = date("d"); e.g: 21 Todays month name $month_name = date("F"); e.g: July ..

header type json

Changes the header to show json type content when the server requests it. header('Content-Type: application/json');

wordpress use a shortcode in php gravity forms

good for using shortcodes in your wordpress templates

extract meta tags from url and return as json array

this will download the url and extract its meta tags returning a json encoded string, with json headers. If the url is accessable. <?php header('Content-Type: application/json'); if(!isset($..

csv read example

Not sure if this is the best or correct way of handling CSV file imports, but it worked for me. here is an example of opening a csv and importing the content into a class, you will need to create ..

php get the file modified time with filemtime

Good for reading the modified time of files with php... echo date("F d Y H:i:s.",filemtime("html/php-get-the-file-modified-time-with-filemtime.html")); will output

preg_replace ereg_replace replace all chars

This will replace all characters that are not A-Z a-z 0-9 and - $uid = preg_replace("/[^A-Za-z0-9\-]/", '', $uid);

wordpress check home and not home for banners and things

this quick function will check if the page is home or not good if you want something on the other pages and something just on the home page in the header or that kind of thing. i have tested this i..

using custom request headers array with curl

this function passes in an array with custom request headers to curl, good if you need to pass in some headers to request an api url and give it an auth key or something like that. Also added to the a..

sqlite delete data older than timestamp days

good if you need to delete data older than a certain date, i tested this and it seems to delete data older than 2 days but might have had the time stamp incorrect or something. DELETE FROM $db_tabl..

wordpress get site url

good for using in templates in case the site is moved <?php echo get_site_url(); ?> Usage Example (css) using inline styles in a template file <style> .class { background:url("<?p..

simple html dom extract attributes simplehtmldom

this is if you have an element as follows, and you want to extract attributes from it. <img class="an-image-wow" src="image.jpg" data-image="data-image.jpg" alt="my alt tag"> list all its attr..

find the 1st occurence of a string in another string

do a case-sensitive search for a string within another string strpos mixed strpos ( string $haystack , mixed $needle [, int $offset = 0 ] ) usage find the 1st location of a string position within a..

pretty printing json with php

nice if you are working with json string data and just want to be able to read through the structure without copy pasting it somewhere else. $json_string = json_encode($data, JSON_PRETTY_PRINT);

extract meta tags from file or url as array

php has a built in function that can be used to extract the meta tags from a page url into an array. usage just pass it a url, if you call this file meta.php. usage: meta.php?url=http://my-url.co..

wordpress show posts loop with feature image thumbnail

this is surprisingly hard to find code that lists all blog posts in a template with the feature image that does not use an additional plugin. you shouldnt need a plugin to do this as its already built..

random number using rand

Show me a random number between 6 and 12 echo $number = rand(6,12);

search within files in a directory

During my quest to create a semi-static site that is searchable and fast to load. I thought while loading all of this content in with ajax and such that it would be interesting if i could do a text ..

wordpress show the post content for use in a template

if you are looking to show the page content in a template you can find that here. This will show all posts in the selected category Modified source from here

show errors in php with toggle

Toggle showing errors in php if your server is configured not to show them, good for testing. If you dont have this enabled it will usually just show a 500 error with no details of where the error o..

count the elements in an array

seems easy, if you need to know the amount of elements in an array this is how you do it. good if you need to know where the end of an array is. code <pre> <?php $array = [ "yo", ..

parallax js scroll testing

Update: the demo on this one seems a bit broken, i have to fix it! :) you can view a working demo here: https://codepen.io/kruxor/pen/PpGLRG This is one that i had a demo of on codepen, and then code..

jquery clone and append elements

This jquery function clones an element and appends it to another one.  Here is the basic code: $( ".clone-me" ).clone().appendTo( ".append-me" );I also updated this to work with just raw js, so..

truncate text long titles with text overflow ellipsis

this one can be useful for fitting text into smaller places without it looking broken. text-overflow: ellipsis; this basically adds the 3 dots where the end of the text used to be... Also if you are ..

margin padding framework

Just a quick margin and padding framework that i came up with, to make margins padding and basic styles a bit quicker.

wordpress get template directory

Get the current theme directory, good for use in wordpress templates. <?php echo get_template_directory_uri(); ?> Usage Example To link to an image located in the theme directory <..

check the server method post or get using php

Here is a basic usage method for checking if the server is in post or get mode. most normal pages are served in get mode. You can send data back to a page using get by adding variables to the string ..