Code

Code examples for languages such as PHP and JavaScript.

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.

How to check if a JavaScript variable is a function or not.

This is a simple guide on how to check if a JavaScript variable is a function or not.

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.

Send Ajax request after page has loaded.

This is a tutorial on how to send Ajax requests after the web page has loaded.

JQuery: Display an element for 5 seconds.

Temporarily display an element with JQuery.

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.

SQL Server: “The password of the account has expired.”

User passwords on SQL Server will expire by default. To disable this, you will need to untick the expiration checkbox.

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.

Warning: session_start(): open_basedir restriction in effect.

This is an issue that occurred when I attempted to run a PHP web application on a Windows IIS server.

PHP: Save an object to MySQL database.

This is a tutorial on how to save PHP objects to a MySQL database. This method will also work with other DBMS systems such as SQL Server and PostgreSQL.

PHP: Storing an array in a session variable.

This is a tutorial on how to store a PHP array in a session variable.

mysql_fetch_array() expects parameter 1 to be resource, boolean given.

This is probably one of the most common PHP errors.

How to truncate a MySQL table with PHP

This PHP tutorial will show you how to empty a MySQL table using the PDO object.

PHP: Select list of MySQL tables (PDO).

This is a tutorial on how to retrieve a list of MySQL tables using PHP and the PDO object.

PHP Comments.

This is a simple tutorial on how to write comments in PHP.

PHP: Fix for “Invalid argument supplied for foreach()”

PHP will display the “invalid argument” warning if your code attempts to loop over a variable that is not an array.