Search
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..
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 ..
How to download music to mp3 format from youtube using youtube-dl
How to download ABGT from youtube. youtube-dl sudo apt install python3-pip ffmpeg brew install ffmpeg brew install youtube-dl Getting this error: The operation couldn’t be completed. Un..
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..
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..
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 ..
javascript try catch example function
try catch is a good way to stop errors breaking your javascript. here is the example from the firefox mozilla with a basic try catch logging the error to your console, rather than just breaking all t..
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..
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..
log the console log output to a div
I do a lot of console logging so i thought it would be nice to be able to see this on my test pages. Apparently you can grab this quite easily with the following code. I had to modify this a b..
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.
video not auto playing issue in chrome and brave
i had this error the other day when i was adding an auto play video to a page. the error was: Javascript Uncaught (in promise) DOMException: play() failed because the user didn't interact with the ..
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..
404 Error Page Codepen
found this in my links the other day, still looks cool...
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..
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..
python Install Beautiful Soup
this allows you to install the Beautiful Soup library for python which is used for html parsing BASH python3 -m pip install beautifulsoup4 python3 -m pip show beautifulsoup4 if you get an error say..
add click event to multiple link items and load the link content into a target div ajax
this will get a group of links with existing href targets and load them dynamically with an ajax callback you will need to also include the full jquery script as the slim one does not include the aja..
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..
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/..
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 ..
wordpress get the current category id name and slug
This gets and displays the current category id in a wordpress blog post if you have the current id, if not you can leave the $post_id blank and it should see if there is a category loaded to the curre..
fix for Uncaught (in promise) Error: reCAPTCHA placeholder element must be empty
This is usually caused by something being inside the element used to render the reCAPTCHA. In this case tinymce was adding a or a <p> tag to the element Removed the space and this f..
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..
fix for Uncaught TypeError: e.indexOf is not a function
fix for depreciated window load Uncaught TypeError: e.indexOf is not a function at S.fn.init.S.fn.load (jquery-3.5.1.min.js:2) at default.aspx:993 I found this error when upgrading from a..
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') {}
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..
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..
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..
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..
testing chartjs
Update: 30 June 2020 I checked this code, and it was broken all fixed now. The issue with the demo included on the main site is that it was trying to run the chart js before the chart library was load..
