PHP Tutorials

Tutorials, code snippets and articles relating to PHP.

PHP: Add days to a date.

This is a short tutorial on how to add days to a given date using PHP.

PHP: Receive raw POST data.

This is a short guide on how to receive raw POST data in PHP.

PHP: Determine if a number is odd or even.

In this PHP tutorial, we will show you how to check if a number is odd or even.

PHP: Removing whitespace characters.

This is a short guide on how to remove whitespace characters in PHP.

PHP: List the indexes on a MySQL table using PDO.

This is a PHP tutorial on how to list all of the indexes that have been assigned to a MySQL table.

PHP: Don’t use the die statement.

Please don’t use PHP’s die / exit statement unless it is absolutely necessary.

Get the length of a PHP array

This is a beginner’s guide on how to get the length of a PHP array.

Returning multiple values from a PHP function.

This is a tutorial on how to return multiple values from a PHP function.

Prevent direct access to a PHP file.

This is a guide on how to prevent a user from directly accessing a PHP include file in their browser.

PHP: Replace an array key.

This is a tutorial on how to replace an array key in PHP.

PHP: Get a list of all MySQL databases using PDO.

This is a short tutorial on how to get a list of all MySQL databases using PHP’s PDO object.

PHP: Find all images in a HTML string.

This is a guide on how to find and extract all image elements from a string containing HTML.

PHP: Find and extract all links from a HTML string.

This is a PHP tutorial on how to extract all links and their anchor text from a HTML string.

How to get the extension of a file using PHP.

In this guide, we are going to show you how to get the extension of a file using PHP.

PHP date: One week ago.

This is a PHP guide on how to get a date that was 7 days ago.

PHP: Split string by first occurrence of a character.

This is a PHP tutorial on how to split a string by the first occurrence of a given character.

PHP: Get a random character from a string.

This is a short tutorial on how to get a random character from a string using PHP.

PHP: Fix “Array to string conversion” error.

This is a short PHP guide on how to fix the “Array to string conversion” error.

PHP: Convert an array into a comma-delimited string.

This is a short and simple PHP tutorial on how to convert an array of strings into a comma-delimited string. To do this, we will use PHP’s handy implode function.

How to refresh a page using PHP.

In this tutorial, we are going to show you how to refresh a page using PHP. To do this, we will send a header to the browser.

PDO: Count number of rows in a MySQL table.

This is a tutorial on how to count the number of rows in a MySQL table using PHP’s PDO object.

PHP: Days until next Christmas.

This is a short tutorial on how to calculate the number of days until next Christmas using PHP.

PHP: Convert a date into a Unix timestamp.

This is a short PHP guide on how to convert a regular date string into a Unix timestamp.

PHP: Check if cURL is enabled.

This is a short guide on how to check whether cURL is enabled as a PHP extension or not.

PHP: Check if a class exists.

This is a short guide on how to check if a PHP class exists or not.

Populate SELECT options with Ajax.

This is a JavaScript tutorial on how to populate a SELECT element’s options with an Ajax request.

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.

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.

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.

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.

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.