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..

chocolatey command line for windows

i keep forgetting what this is called but its like a command line installer for useful windows tools like ffmpeg and other useful packages. Its like a simple package manager for windows.  How ..

add ssh keys on your linux box in 10 seconds

Here i was typing in the ssh password over and over when connecting to ssh, when i could have just typed this one command and had my ssh keys copied to my linux box! What was i doing all that time! :..

windows robocopy /? help and usage

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

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 $..

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..

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 ..

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..

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..

check url hash using javascript

What is a url hash? This is a URL Hash. You can add the # symbol on the end of a url and content after it, and this will not effect the content usually, unless the browser is intructed to do somet..

highlight a button with an animation css

While i was downloading the latest AdoptJDK i noticed this button, and thought it was a nice effect.  I wondered how hard it would be to replicate this. Copy the link html Check each class..

A short unsplash image url

You will notice that if you copy the image source from unsplash you will end up with something like this: https://images.unsplash.com/photo-1582639590011-f5a8416d1101?ixlib=rb-1.2.1&ixid=MnwxMjA3..

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..

Testing Playwrite on for Node

I came across this library on y news, and thought id give it a bit of a test.  I managed to get it working but not really sure what tests it can do.  I set it to take a screen shot of a we..

center image preview with lightbox and caption

I just wanted a thumbnail or preview of the image, where if clicked it would load into a lightbox, but the preview just shows the center of whatever image is added to it.  Note: I just picked ra..

center align vertical 2 items in a container flex

i had this issue and i was pretty sure that flex center could fix it but it was causing the two items in the div to sit next to each other, which was annoying as it was a header and content, but i sti..

Hello world in C and seeing what it is actually doing

One of the most simple C applications, how to compile it and how to objdump it.  C #include int main() { int i; for(i=0;i < 10; i++) { puts("Hello Mac\n"); } return ..

Using CSS Grid instead of Float's for a 3 column simple list

I have been in the habit of just using float:left and then width 31% with margin 1% for list items, and it seems to work fine usually.  But i thought i probably should update the defaults in by ..

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..

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..

install cmatrix on mac m1

For some reason i thought the mac would have apt or apt-get to install packages, but apparently not.  Here is how you can install cmatrix a matrix emulator or other unix type terminal apps on ma..

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..

javascript random string to put on url for cache

I was having a bit of a cache issue with a external css file, so i thought i might fix this by appending a random query string to the file name. This should force the browser to recheck the file each ..

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 ..

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..

Using props with Stateless Functional Components in React

Here is an example of a Stateless Functional Component but i cant get the PropTypes working correctly in my demo, not sure what im doing wrong here, but the code seems to work in the compiler just not..

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..

How to Pass Props to a Stateless Functional Component in React

Props are like properties that you can pass into a component in react. A prop would be something like this in your component.  JSX <div>  <MyProp id="1234" /></div> The..

How to Create a React Component using the ES6 class method

One way to add a react component is to use the Stateless Functional Component method, and another way is to use the ES6 extends syntax. This method seems more complex than the 1st for some reason mayb..

What is a Stateless Functional Component in React

What is a Stateless Functional Component? A stateless component is one that can recive data and render it, but it does not manage the provided data or track changes to it.  This method creates ..

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 ..

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..

responsive three box section with tabular data or table data

here is a section in foundation with 3 hero boxes with images on top, and then a title and some tabular (is that the same as table?) data in each box, so could be good for some kinda products and then..

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         $..

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..

animated duck on footer

Thought this was cool. How do i do it? Page Source: https://www.learninpublic.org/  Copy this section Lets see what is attached to it. So i can see from the classes its a tailwind based ..

twitter json feed testing

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

center mode slick zoom testing

update : this is a tricky one to get working! I have done a lot of testing on this one, and got a demo working from a combination of the following links. the demo is still not 100% styled, but its..

gallery carousel center mode

i found this one here, looks cool. see if i can get it working like the demo.  currently getting this error on running the script i wonder if this is caused by a document ready issue? what is..

how to view a web page in its printer format

if you have to check a website in its print or @media print format this is how you can emulate it in browser if you are using chrome or edge.  Open the Dev Tools (usually F12) Click the menu ..

old browser check with javascript

modified from this script i console logged all the items available so you can do what you need with them these are the avilable variables Javascript console.log(browser.agent);console.log(browser...

this is a weird one table underline appearing and dissapearing on mouse over

very strange that also reminds me that i have to get rid of these random searches idea: i was thinking of adding a more detailed hit system where it can record the month and also the year of the..

ajax callback to delete with sweet alert confirmation to make it cool! 😎

I recently wanted to to an ajax call back on a list of items just to make it easier to move around the place, rather than it reloading the page every time. So i thought why not also use sweet alert on..

dropdown section

What generates the dropdown widget items? generated by the function generate_section_button() per class template file section-dropdown-bootstrap.html  

Latest from Code Widget

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

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..

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..

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. 

adding a background image to the titles of the dark mode card on this page

Just wanted to see what it would look like if i added some kinda image to the background of the titles. Side Note: i wonder if its a bad idea to add images that are uploaded to imgur rather than to t..

using text-stroke to add a border to your text

this is quite good for webkit enabled browsers, and most of them are these days.  Check what is supported: https://caniuse.com/?search=webkit-text-stroke   

adding background blur to an image using css fill screen

I had noticed this cool looking effect used on places like google, and other sites that display portrait images, i think i saw it on the google home as well or maybe google photos.  Its basicall..

how to find what version pi you are using

So i was wondering the other day how to show what raberry pi i had, rather than opening it up. you can install lshw and it can list all your hardware Install it with BASH uname -r which should gi..

Uncaught TypeError: $(...).slideToggle is not a function

Uncaught TypeError: $(...).slideToggle is not a function at toggle ((index):226) at HTMLAnchorElement.onclick ((index):239) I noticed this one today when looking up this post:https://kruxor.com/view/..

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..

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..

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..

badge border colour is too dark or light on number badges [fixed]

I noticed that the badges here were to light, so i must have missed something when updating the badge css. Demo Linkhttps://www.kruxor.com/search/code/site+bugs/ Bug Status:Fixed Problem: The bo..

top bar overflow issues [fixed]

So i was just browsing throught the site checking for random errors, which there are quite a lot. And noticed this one. Quite a large bug caused by overflow issues in the main header, i think this ..

use an emoji on your list items ul li

I didnt think this would work but it does somehow, i guess it may differ depending on what emojis are available on your system.

Monitoring Visible Objects on Screen

i found this one when researching how to detect visible objects on screen, and then doing something with them. This one does not use any external scripts to change the box colour as it becomes visible..

how to install js socials for social media share buttons and make them rounded

This should be a nice quick one on how to install js socials which add social media sharing buttons on your pages.  Yeah i always just ignore these as well, but hey some people may use them?? H..

css perspective and transform css properties testing

i wanted to see what i could do using the perspective and transform css properties. i dont really get how the perspective one works, but you can tweak it so it doesent look too weird.  with the ..

Fix Hover Over color on list group dark mode in bootstrap

How to fix the problem when switching to dark mode, the list group item text disappears when active. Here is what it currently looks like. To fix this we need to target the element and force the..

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..

extracting the useful bits of bootstrap

Back in the early instances of bootstrap they used to provide a build system for the individual components. It seems that these days its all or nothing, or use some kind of build tool to include the b..

Bootstrap Darkmode Switch

I have tried this before without success but i googled "Bootstrap Darkmode Switch" and found this repo at the top of the list. So i thought i would give it a try on here and see how it looks. Demo pag..

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..

get element by class name with javascript and change it function

You may have seen the get element by id in javascript, which is great when there is only one element but what if you need to get the element using its class name The issue with classes is that they c..

add a tag to wordpress header from a plugin

when i googled this it just showed me plugins to add and remove things from the wordpress header. here is how you actually add your own tags to the wordpress header. This function will add the tag hi..

list items matching a category title

this is just raw at the moment, not tested or working. this is matching a category number at the moment so would need an additional way to link that number to the category name, or know what the categ..

fixing the website footer and making it less ugly

Here i show you in a couple of steps how to make the footer on this site look nicer, while actually doing it. Here is what the footer currently looks like. Yep pretty average looking. Lets add a ..

IP Address

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

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.

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..

Using Flexbox rather than Floats

So i was still using float left for a bunch of elements i was working on the other day, sometimes it's hard to drop old techniques. What are the actual benefits of using flexbox rather than float lef..

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 = $_..

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..

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 ..

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 ..

wordpress advanced custom fields replace shortcode for site url with blog url

Using advanced custom fields, if you know what the shortcode is and what you want to replace it with you can do so with the following. $site_url = get_site_url(); $field = get_field('template_ht..

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..

do something later with settimeout or loop with setinterval

setTimeout This one will run a certain time after the document loads. So if i want to execute something 5 seconds (or so) after the page loads i would do this. You will need to check your console..

json loop load elements

Loading json content from a url can be tricky, there are a few different things you need to watch out for. Here is some examples using an example json feed. Load the feed this will load the feed and..

using vue and json data

Based on This Demo: https://jsfiddle.net/kkpLnv6k/ so i was looking through the jquery way of loading json data and was wondering what the point of loading it in with a vue.js instance is. I guess ..

make any element editable

not sure if this will work on "all" or "any" elements, but it works on p tags. demo Type whatever you like here. code <p contenteditable="true" style='font-size:30px;'>Type whatever ..

flexbox layout template

thought i would see what a full page example layout would be like using flexbox rather than floats Using this for flexbox reference flexbox layout Note: tested working in ie11.. yay.

video embed full screen all screen sizes

this will make a video cover the full screen of the browser no matter what size it is. It will do some cropping to make it fit. <style> body, html { margin:0; padding:0; } .video-cont..

using mix blend mode and filter grayscale for hero

embed and use a ttf font font face

Handy if google fonts does not have your required font and you have the correct licence for showing it on your site... ;) css /* Include the font, you can call it whatever you like */ @font-face ..

remove border glow css from textarea on select

how to remove the glow around a text area when selected or in focus using css. Text Area Highlight Here is what it looks like just to show you where the textarea is while editing, but can look m..

flex align center vertical horizontal

lets say you have a box within another box, like so: .box { height:500px; width:500px; background:#CCC; } .another-box { height:50px; width:50px; background:#999; } ..

make your images look non squished when not using image backgrounds

Update: Fixed the code, you can see it here.  i deal with a lot of sites where they have a bunch of images listed and sometimes they can end up looking a bit sqashed unless you add a div and set..

table border collapse

I see this quite often when dealing with tables the border-collapse: collapse; used on a table as so: table { border-collapse: collapse; } So what is the point of doing this? It seems to help..