Wordpress Use the settings API

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

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..

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.  ..

windows robocopy /? help and usage

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

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..

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 ..

MySQL to Sqlite converter

# Converts a mysqldump file into a Sqlite 3 compatible file. It also extracts the MySQL `KEY xxxxx` from the# CREATE block and create them in separate commands _after_ all the INSERTs. # Awk is choos..

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..

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 

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..

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 /..

unable to write to a sqlite database with docker

turns out this was not a docker specific problem, i was getting the readonly database error.  even if the database has full write permissions, the directory also needs to have write permissions ..

Clear Youtube DL Cache to fix 403 Forbidden error, youtube-dl 403 forbidden

If you are getting the error: File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_defaulturllib.error.HTTPError: HTTP Error 403: Forbidden It could be cache that is causing this..

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..

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..

Uncaught TypeError: Cannot set properties of null (setting 'onclick')

I was just testing some code and noticed i had this error on my site.  Locate the error in the site code I removed this script, so the whole thing is now not required, as i opted for the au..

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..

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()..

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 &nbsp; 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..