Realpath()

Introduction

In PHP, the realpath() function is used to resolve the absolute path of a file or directory. It is a useful function for working with paths in your PHP scripts. In this article, we will cover everything you need to know about the realpath() function, including its syntax, parameters, and examples of how it can be used.

Understanding the realpath() Function

The realpath() function in PHP is used to resolve the absolute path of a file or directory. It takes a single parameter, which is the path to the file or directory.

When you use realpath(), PHP resolves the path to the file or directory and returns the absolute path as a string. This can be useful for working with paths in your PHP scripts.

Syntax of the realpath() Function

The syntax of the realpath() function is as follows:

realpath($path);

Here, $path is the path to the file or directory.

Examples of Using realpath()

Let's take a look at some examples of how the realpath() function can be used in PHP.

Example 1: Resolving the Absolute Path of a File

<?php

$file_path = 'example.txt';
$absolute_path = realpath($file_path);
echo $absolute_path;

This example resolves the absolute path of the example.txt file and outputs it to the browser.

Example 2: Resolving the Absolute Path of a Directory

<?php

$dir_path = 'example_directory';
$absolute_path = realpath($dir_path);
echo $absolute_path;

In this example, the absolute path of the example_directory directory is resolved using realpath() and output to the browser.

Conclusion

The realpath() function in PHP is a useful function for working with paths in your PHP scripts. We hope that this article has given you a better understanding of how realpath() works and how it can be used in your own projects.