PHP Tutorials

Tutorials, code snippets and articles relating to PHP.

PHP: Check if a date falls on the weekend.

This is a short PHP tutorial on how to determine if a given date falls on the weekend.

Redirect page after five seconds using PHP, JavaScript or META tags.

In this guide, we are going to show you how to redirect a web page after five seconds. You can do this using HTML, PHP or JavaScript.

Prevent web page from being loaded inside iFrame.

This is a short tutorial on how to prevent your web pages from being loaded inside iFrames on other websites.

PHP: Convert number to month name.

This is a short guide on how to convert an integer number into a month name using PHP.

Adding columns to a MySQL table using PHP.

This is a tutorial on how to add columns to a MySQL table using PHP.

PHP: Convert portrait image to landscape image.

This is a short and simple guide on how to convert a portrait image into a landscape image using PHP’s GD and Image Functions.

Detecting AJAX requests with PHP.

This is a guide on how to detect AJAX requests with PHP.

PHP: Redirect HTTP to HTTPS.

This is a guide on how to force users to use your PHP application with HTTPS instead of HTTP.

Fix: index.php not being loaded by default.

In this article, we will show you how to solve the issue of index.php files not being served as the default file.

PHP: Remove newlines from text.

This is a short guide on how to use newlines and carriage return characters from text using PHP.

Fix: PHP upload form not working.

This guide should help you figure out why your PHP upload form isn’t working.

PHP: Identifying Production & Development Server

This is a short guide on how to write PHP code that identifies whether your application is running on a production server or a test / development server.

PHP: Get full URL of current page.

In this tutorial, we will show you how to get the full HTTP URL of the current web page using PHP.

PHP: Spoof HTTP referer field with cURL.

In this short PHP guide, I will show you how easy it is to spoof the HTTP referer field using cURL.

Generating Lotto / Powerball results with PHP.

In this tutorial, I will show you how to generate random lotto results using PHP.

PHP: Convert XML into JSON.

This is a short guide on how to convert XML into JSON using PHP.

PHP: Convert a negative number into a positive number.

This is a very short tutorial on how to convert negative numbers to positive numbers using PHP.

Validating dates with PHP.

This is a tutorial on how to validate user-submitted dates using PHP.

PHP: Create file if it doesn’t already exist.

In this tutorial, we will use PHP to check if a file exists before we attempt to create it.

PHP: Search array for substring.

This is a guide on how to use PHP to search for a particular substring in an array.

PHP: List all files in a directory.

In this beginner’s tutorial, I will show you how to list all files in a directory using PHP. We will do this using PHP’s glob function.

PHP: Delete all files from a folder.

A guide on how to delete all files and sub-folders in a given directory.

Send GET request with PHP.

This is a beginner’s tutorial on how to send a simple HTTP GET request with PHP.

PHP T-Shirts

A collection of humorous PHP and Web Developer-related T-Shirt slogans that you can buy online.

PHP: Create CSV file from MySQL.

An example of exporting MySQL rows to a CSV file that is downloaded by the user’s browser.

Convert a CSV file into JSON using PHP.

Convert a CSV file into a JSON string format.

PHP: Convert JSON to CSV.

Converting JSON data into a CSV file using PHP.

Receiving JSON POST data via PHP.

A tutorial on how to receive raw JSON POST data with PHP.

PHP: Check if function exists.

This is a short guide on how to check to see if a PHP function exists (i.e. if it has been defined or not).

Stop JavaScript from being cached.

How to stop web browsers from caching your JavaScript files.

Dynamic CSS stylesheets with PHP.

A tutorial on how to dynamically create CSS stylesheets with PHP.

PHP: Get the day of the week from a date string.

This is a short guide on how to get the day of the week from a given date in PHP.

PHP: Returning a variable from an include file.

This is a quick tutorial on how to “return” variables from an included PHP file.

PHP: Populating a drop down list from MySQL.

This is an extremely simply tutorial on how to populate a drop down list using values that you’ve selected from MySQL.

PHP Exceptions: Try & Catch.

A simple guide to using Try & Catch in PHP.