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(PHP 3, PHP 4, PHP 5)

dirname -- Returns directory name component of path

Description

string dirname ( string path )

Given a string containing a path to a file, this function will return the name of the directory.

On Windows, both slash ( / ) and backslash ( \ ) are used as directory separator character. In other environments, it is the forward slash ( / ).

Example 1. dirname() example

<?php
$path = "/etc/passwd";
$file = dirname($path); // $file is set to "/etc"
?>

dirname() has changed its behaviour in PHP 4.3.0. Check the following examples:

<?php

//before PHP 4.3.0
dirname('c:/'); // returned '.'

//after PHP 4.3.0
dirname('c:/'); // returns 'c:'

?>

dirname() has been binary safe since PHP 5.0.0

Related Function(s)

basename()

pathinfo()

realpath()