Wordpress Use the settings API

React - Use State to Toggle an Element

Mastering React State: Toggling Elements with Confidence React's state management system is a powerful tool for building dynamic and interactive user interfaces. One common use case involves to..

CSS Object Fit for Image fill rather than using background image on a div

CSS Object Fit can crop off the sides of an image, while also preserving its aspect ratio, and then fill in the space to fit any size.  Object Fit You can use: object-fit: With the following ..

wordpress jquery find and replace option text value

renames the Select Category in the option value 1 to Topics add to the footer, uses jQuery rather than $ but you can just switch to $ if not using the wordpress jquery init. 

select something with custom data attribute css

selecting something by its custom data attribute and value in css

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..

chart js line chart dont show below 0 and add axis labels

Now we take the chart js chart and add some axis labels on x and y using the same options values. This will also add axis labels to the chart on the x and y axis Javascript options: { scales: {..

chart js line chart dont show below 0

had an issue where the chart was displaying values in the negative, and wanted to start the chart at 0 and no go below. the additional option fixed this issue.  Javascript options: { scales..

Simple Line chart with Chart.js

a nice simple line chart example with fill using chart.js

windows robocopy /? help and usage

Reference for the windows robocopy command ------------------------------------------------------------------------------- ROBOCOPY :: Robust File Copy for Windows ..

check if an item id exists in javascript

checks if 2 ids exist in one function and console logs the status here is the result in console log

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.

cookie consent quick install script js html css vanilla

Found this super slick looking cookie consent script here, looks awesome, and its easy to install (i hope). https://github.com/orestbida/cookieconsent  CDN Links https://cdn.jsdelivr.net/gh/or..

Twitter Post Fetcher v18.0.4 - javascript twitter feed fetcher

A few queries showing how to get latest tweets and post likes using the Twitter Post Fetcher v18.0.4 script.

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 $..

codemirror with auto preview window

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

Are you sure you want to navigate away from this page? #JavaScript warning

You only need to include one of these scripts as the top one seems to work fine by its self not requiring any jquery. Javascript window.onbeforeunload = function (e) { return "You..

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..

Robocopy Options /? help

My usual backup command is now robocopy source destination *.* /M robocopy d:\ f:\ *.* /M Update: actually scrap that, its /E not /M, i used to use the /MIR option, but as deleting files in the des..

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. 

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..

basic radio checklist - check and item and get its value in a textarea

a basic radio input type checklist, where you can only select one of the items in the list.  Ok so no longer so basic.  This script allows you to fil the value of a text area with the valu..

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 ..

using the :user-valid CSS pseudo-class

It seems this is currently only working in firefox. Here is a test of the code in firefox, you can see if you add a "valid" email address it will add a border and a green tick.

Javascript Objects Notes

As javascript objects are used so often in javascript i thought i would write an overview and some notes on how they work, well how they work for me anyway. I guess how they work for me should be simi..

update value of element using javascript

using innerHTML to update the value of an element

best way to write html into an existing page javascript

this probably isnt the "best way" but it is a way that works. say you want to add some elements to a page with javascript this is a method to do it.  Add an element, before including the script..

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..

get the value from a textarea element

gets the value from the textarea and prints it to the console of the browser rather than using innerHTML you have to use value.

javascript get content from element

gets the content from a target element with javascript using its id sets the target with the content from element 1 using its innerHTML attribute

get directions from google maps form embed

this is a random form that posts back to google maps showing the directions needed to get from one address to another location, im not sure where this would be usefull. Maybe on a site where you neede..

Create Strings using Template Literals

if you use the backtick to enclose your strings you no longer have to use \n for a new line.  For example: `this is a multiline ...string!!` Console Example

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

Darkmode JS - Add darkmode to your site with one script

This library looks really nice! It drops in ok, but maybe with more complex layouts or coloring, it seems to break a little bit.  Darkmode JS Example Source Links https://darkmodejs.learn.un..

Use destructuring assignment to swap the values of a and b

Use destructuring assignment to swap the values of a and b so that a receives the value stored in b, and b receives the value stored in a. I was havi..

How to Assign the Value of One Variable to Another in Javascript

Showing a very basic script that assigns the value of the variable a to b and then console log's the object.

Input Suggestions using a datalist

I found this cool piece of code here, looks very handy. Basically you can add the input and then provide it a data list with suggestions, which then will allow you to start typing the item and it wil..

Console Tips and Tricks

Here are some quick commands for the console. Getting to the console in your browser Press F12 and Find the console tab. That little blue > there is the console. this is in brave or chrome, bu..

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. 

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..

load json data url with jquery

loads a api or json url or endpoint using jquery and console logs the result Tested working on my test json file, check the console and it should be there. 

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 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.

How to Use PropTypes to Define Props in React

React allows you to define the types of props given to your components to make sure that invalid data is not sent as the prop to the element.  To do this you can define propTypes. You can defin..

How to Override Default Props in React

The following code explains how you can override the default props in react.  In this example the default of quantity is set to 0, so we can pass in quantity in the items to override its default..

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..

show the current date in javascript

Returns the current date and time and sets the value in a div.  Also added a demo with setinterval to update the time and date in the div every second. 

get element by id and hide it

This example gets an element by its id and hides it by setting the css style value to display none 

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.

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 ..

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..

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..

change selected color on input elements css

this can be useful if you are using darker form elements and they happen to have white on white text, so you can target the :focus on the input. here is the text input before the colour change, the c..

change the background color of an element with javascript

gets the element by its id and changes the background color style css value the following example: gets the element by its id "my_bg" changes the style.backgroundColor to #123456

javascript update item in object

find something in a javascript array by its array id and then update the value of that item i changed this from an array to an object as i wanted to use something other than numbers for the index Ob..

get the value from a range input field with javascript

this script will retrieve the current value from a range slider html input if you want the value to only update when the slider interaction has been stopped change the oninput to onchange then it w..

twitter json feed testing

just testing using the Twitter Post Fetcher script, seems to be working well.

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 ..

white space break word css

controlling the white space of an element with break word, this can be handy if you need to fit something into a fix but the item has no spaces, otherwise usually by default this will overflow out of ..

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..

using clamp js to clamp lines of text

there is a css version of this as well but this version works in a greater range of browsers (i think) this one is not working for me... i think the overflow elipsis is still a better option than thi..

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..

json test objects (or arrays)

here is a couple of test objects in external js files just in case you need to test some ajax loading functions or need external objects, i mostly use them in my testing. Basic JSON Object with 3 ite..

loop through a complex object json javascript

just a note to say that a complex object is an object with more than one nested object in it for example just kinda playing around with this one to get the handle on objects and how to access them C..

json load from jquery and loop through the results

this is the same as this post but i have added the object to an external test file. so rather than already having the object data on the page we have to load it somehow Note: you can test that the o..

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..

set active class based on url value

this will check the full url and then loop through all the a elements in #test-div when it finds a matching url it will add the class active to that button this is good for persisting active links o..

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

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. 

validate an email address from a form field - version 2

This javascript function will check if the email address in the text box has an @ and a . in it and return a message saying if its valid or not.  This is pretty basic as it only includes checkin..

form submit override with javascript

if you need to run some additional checks on a form before submitting it

dropdown change input box on select

changes the value of an hidden input depending on the selection of the dropdown

php print an array nicely

this works for variables and arrays

clear a input field when it looses focus using onblur

this will cause the input field to clear when it is not in focus

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..

change a select box back to its initial select value

this will reset the select box selected value back to the 1st item in its options list

select onchange

select onchange run a function this will run the check_years function when the select value is changed

add years as options to select dropdown

add the years as dropdown items between a range of years with javascript document ready js only version

loop through object json javascript

this shows how you can loop through a javascript object using for if you check the console you can see the loop results

json jquery ajax request

get json data with jquery using getJSON

add click event to multiple link items

this allows you to get every a element in a-div class and stop the link from loading, so you can do other things with it like run a function or something else Functions used: Javascript Wait for th..

set the html of an element javascript

this will set the innerhtml value of an element

inline form field padding

I noticed this when doing this demo (get the value of an input form element).  Looks like inline form elements look pretty average when a button is added to the same line. i think this should..

get the value of an input form element (input value)

add how to get the value of an input form element with javascript for some reason i can get this working with: Javascript console.log(document.getElementById("my_input").value); but when trying to..

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..

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

How to set a cookie and expire it in 30 days

Here is some basic usage for the js cookie library. Include the following script. Or you can grab the latest version at the cdnjs website. HTML <script src="https://cdnjs.cloudflare.com/ajax/lib..

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..

set maxHeight of element by id with javascript

sets the max height value of an element with javascript demo pending

test page for the custom css 12 grid used on this site

This is my testing page for the grid used on this site, it shows elements and other things for use on the grid and other general formatting.

play a sound every # of seconds

This plays a beep sound every # of seconds, to stop it just reload the page 4 Minutes is 240 4.5 Minutes is 270 5 Minutes is 300

check that a number is in the correct range based on a form selection

This script will check if the number is correct based on a form selection this can be used for checking that a postcode matches a state value or something similar Lets grab the html select form from ..

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..

country select javascript check which option is selected and show a hidden element

this shows a country dropdown and then if a selected country name is matched it will show the second part of the form for this test australia is the confirmed country

country select javascript check which option is selected

this is an example of how you can get the selected country value with javascript from a html countries dropdown

wordpress adding post custom field meta and displaying it on you template

if you want to be able to add custom post fields into your pages in wordpress and display them in your template this is how you can do it, no plugin is required for this as post meta is available by d..

hide parts of a form until the 1st item is selected

this code can be used when you just want to show the 1st field on a form then when it is selected it shows the rest of the form elements

simple linear gradient overlay for an image to make it darker or lighter

i use this one often if i have a background image and some text over the top, you can darken or lighten the linear gradient values to match the text content and make it readable.

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') {}

get the href value using jquery

this uses the jquery attr function to get the value of the href. this example targets the first a in the card div, so running the demo should alert you with https://kruxor.com Rather than using alert..

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.

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..

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..

getType function for js

this function returns the type of item, array object string number etc

Objects in javascript

creating and using an object in javascript, the full version of this testing is on codepen

using switch with multiple identical cases

this can be used if you have several outcomes where the return value will be the same by omitting the break from the cases before the final

using switch in a function

This shows an example using the switch to select multiple options in a function, you can return from the switch with break, or you can end the whole function with return.

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

JS Using typeof to check on string types

you can use the typeof operator to check what kind of variables you have.

using local storage rather than cookies to store data (localStorage)

you can see what is stored in local storage by typing this into your browser console. localStorage Adding something You can add something to local storage by using the setItem function.

remove something from the end of an array with pop

pop is the opposite of push and will remove the last item in an array, it also returns the value so you can assign it to a variable

get the last letter of a string

you can use the .length and the index of a string to get its last value

CSS Grid - Basic Columns

Here is a basic demo showing the usage for css grid columns. You just need to add the display:grid property and then add the grid-template-columns: adding the size of each column, adding a value for e..

Dropdown Box with Searchable Text

Here we have a dropdown select box, that you can type into to search the available options. No Javascript Required for this the browser does all the work. Press into the text box, and you will see a..

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..

image Checkbox Replacement for Forms

Some sites like to be a bit tricky and have some complicated form checkbox replacement which is not all that hard, just can be a bit annoying as you have to extract the images for this to work. Demo ..

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..

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..

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..

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 ..

round number with js

Round a number to two decimal places. code var rounded = Math.round(num * 100) / 100; demo Result... function round_val() { var val = $("#rval").val(); var rounded = Math.r..

load google sheet data into json string with jquery

Just discovered this the other day, you can actually export google sheets data into json format and load it directly into your site, how good is that. A free mini basic database! Initially i was lo..

validate form data using javascript to check required html elements

for use in a javascript function to submit a form var form = document.getElementById('myForm'); for(var i=0; i < form.elements.length; i++){ if(form.elements[i].value === '' && form.elements[i..

clipboard copy js

for copying things to the clipboard, like the click to copy. Basic Usage Include the script <script src="js/clipboard.min.js"></script> add a field to copy to the clipboard..

set and check a cookie using js cookie

this library makes setting and checking cookies so easy its amazing! include this script <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/js-cookie/2.1.4/js.cookie.m..

using regex with replace to replace all instances of something in a string

so you have a string and you want to replace a recurring character, use this to do it: String Example: var string = "a-string-with-dashes.txt"; var string = "a-string-with-dashes.txt"; string..

stacktable jQuery plugin for stacking tables on small screens

stacktable.js The purpose of stacktable.js is to give you an easy way of converting wide tables to a format that will work better on small screens. It creates a copy of the table that is converted in..

get select option form value with jquery

Handy if you need to get the value of a selected item in an option list basic code $("#select option").filter(":selected").val(); working demo Value 1 Value 2 Value 3 Value 4 ..

form elements australian state list

A list of the Australian States converted into a form element select option dropdown. Sorted in alphabetical order.

emoji data - version 1.0

  Emoji Data version 1.0 This is a better emoji list that you can search by title ctrl + f emoji-data.txt # Emoji Data for UTR #51 # # File: emoji-data.txt # Version: 1.0 # Date: 20..

Form elements New Zealand region list

A list of the Regions of New Zealand converted into a form element select option dropdown. Sorted in alphabetical order. Ready to paste into your own form.

use font awesome on elements lists ul

good if you need to use font awesome in list items like ul lists, etc. .element { position: relative; } /*replace the content value with the corresponding value from the list below*/ ..

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 ..