Code

Code examples for languages such as PHP and JavaScript.

PHP: Assign a function to a variable.

This is a short guide on how to assign an anonymous function to a variable in PHP and then call it.

jQuery: Simple $.each example.

This is a short jQuery tutorial on how to use the $.each function.

PHP: file_get_contents timeout.

This is a short guide on how to set the timeout for PHP’s file_get_contents function.

PHP: Send XML via POST.

This is a guide on how to send XML via a POST request using PHP.

Check if HTML element exists using JavaScript.

In this guide, I will show you how to check if a given HTML element exists using JavaScript.

PHP: Convert 24 hour time to 12 hour time with AM/PM.

This is a PHP tutorial on how to convert a standard 24 hour date and time into a 12 hour time.

Microsoft Edge CORS bug.

The other day, I stumbled across a CORS-related bug in Microsoft Edge.

PHP: Get the width and height of an image.

In this tutorial, I will be showing you how to get the width and height of an image using PHP.

Get file input size using JQuery.

In this guide, I will be showing you how to get the size of a selected input file using JQuery.

PHP: Download file using file_get_contents.

This is a PHP tutorial on how to download a file from a remote server using file_get_contents.

Call to undefined method PDO::execute()

This is a common error to witness if you are a PHP developer who is learning how to use the PDO extension.

PHP: Using cURL with a proxy.

This is a guide on how to use a proxy with PHP’s cURL functions.

Sending multiple non-blocking cURL requests with PHP.

In this tutorial, I will show you how to send multiple non-blocking / asynchronous cURL requests using PHP.

PHP: Return array from include file.

This is a short PHP guide on how to return an array from an included file.

Check if a MySQL row exists using PHP’s PDO object.

In this tutorial, I will be showing you how to check if a row exists in MySQL. To do this, I will be using PHP’s popular PDO object.

PHP: Get numbers from a string.

This is a short PHP tutorial on how to get numbers from a string using the preg_match_all function.

PHP: Increase maximum upload size.

This is a short guide on how to increase PHP’s maximum upload size.

Argument passed to function() must be an instance of ClassName.

This is a short guide on how to fix the “argument must be an instance” error in PHP.

PHP: Check if string starts with a specified string.

This is a short PHP guide on how to check if a string starts with a given string.

Setting custom headers with PHP.

This is a guide on how to set custom HTTP response headers using PHP.

PHP: Disable memory limit.

This is a short guide on how to completely disable PHP’s memory limit value.

Getting a random value from a JavaScript array.

This is a short tutorial on how to get a random value from a JavaScript array. To do this, we will have to generate a random index number that represents an element in the array.

Fix: Tainted canvases may not be exported.

The other day, I came across a frustrating CORS-related error while developing a Facebook Instant Game. This is a short post on how I fixed it.

JavaScript: Add image to canvas.

This is a short guide on how to add an image to a canvas element using JavaScript.

JavaScript: How to get the day of the week.

In this guide, we show you how to get the day of the week using JavaScript. We also provide you with a custom function that you can copy.

Calculating the date of Easter with PHP.

This is a short PHP tutorial on how to calculate what date Easter falls on for a given year.

How to create a ZIP file using PHP.

In this guide, I will show you how to create a ZIP file using PHP.

PHP: Force PDF file to download.

This is a short guide on how to force a PDF file to download using PHP.

Receiving XML via POST in PHP.

In this tutorial, I will show you how to receive an XML string via raw post data using PHP.

JavaScript: Check if object property exists.

This is a short JavaScript tutorial on how to check if a given object property exists.

Check if a variable is a JavaScript object.

This is a short guide on how to check if a variable or value if an object using JavaScript.

Tutorial: Change a DIV’s text using JQuery.

This is a short tutorial on how to change the text of a DIV element using the JavaScript JQuery library.

How to handle an array of PHP objects.

This is a short guide on how to work with a PHP array that contains objects.

Printing out JSON with PHP.

In this beginner’s tutorial, I will show you how to print out JSON using PHP and specify the correct Content-Type header.

Fix: Unexpected token o in JSON.

A short guide that I wrote on fixing the dreaded “Unexpected token o in JSON” error.