Learn PHP Online

This guide will teach you how to decode and encode a string using Base64 in PHP. While initially designed to encode binary data for sending through text-based protocols such as email, it has a variety of other uses. Read More

In this tutorial, you will learn how to use the basename() function in PHP. This function allows you to get the trailing component of a given path. A trailing component is what is referred to as the basename of a path. Read More

In this tutorial, we take you through how to use the rand() function in the PHP programming language. You can use the rand function to generate random numbers in your PHP script quickly. Read More

In this guide, you will learn how to use the break statement in PHP. This statement allows you to break out of the currently running loop. In addition to being used to control loops, it is also an essential part of the switch structure. Read More

This tutorial takes you through creating, accessing, altering, and deleting array elements in the PHP programming language. An array is one of the most used data structures in modern programing languages. Read More

In this tutorial, you will learn how to use the substr() function in PHP. This function allows you to take a string and only return part of it. It is useful when you need to split a string into a smaller part. Read More

This guide will show you how to use PHP's is_numeric() function. This function allows you to check if a string is a number or a numeric string. It helps verify that the data you have received contains a number. Read More

In this tutorial, you will learn how to use the in_array() function in PHP. Using this function, you can quickly check whether a value exists within an array. It is cleaner to use than writing a for or foreach loop to process the array. Read More

This guide will teach you how to get the current page URL in PHP. There is no inbuilt function to get the current URL. Instead, we have to build it from the $_SERVER super global. This super global contains data such as the request URI. Read More

In this tutorial, we will discuss how to use and write a foreach loop in PHP. They are great for iterating through arrays or objects. Highly recommend learning how to use this type of loop. Read More

This tutorial shows you how to read and write a switch statement in PHP. We also go through some of the reasons why you may want to use a switch instead of a series of if-else statements. Read More

This guide will show you how to use the explode function in PHP. By utilizing this function, you can convert a string to an array. It achieves this conversion by splitting a string by the specified separator. Read More

In this tutorial, you will learn how to use the implode function in PHP. This function allows you to combine all values of an array into a string, joined by the defined separator. So effectively, it converts an array to a string. Read More

This tutorial shows you how to generate an MD5 hash for either a file or string. While useless for security, this hash still has its uses. It can be used as a quick hash to validate that two files are the same. Read More

This tutorial will show you how to use the sleep and usleep functions in PHP. These allow you to pause the execution of the running script. Sleep sleeps the script in seconds, usleep sleeps the script in microseconds. Read More

This tutorial will show you how to use the str_replace function in PHP. This function allows you to find and replace text within a string quickly. In addition, it can handle different matches on a string with different text replacements. Read More

In this tutorial, I go through how and when to use require and require_once in PHP. These two statements are useful for including essential scripts and files into your PHP code. Read More

Learn how to use and declare constants within the PHP language. This guide will show you how to use the define() function and the const keyword. This function and keyword affect the way a constant can be declared in PHP. Read More

In this tutorial, we take you through the basics of using and writing a for loop in the PHP programming language. It is a vital code control structure that I recommend you learn. Read More

In this guide, we will be showing you how to create a directory in PHP using the mkdir function. This function even allows you to set permissions on new folders. It also has the ability to create entire directory trees. Read More