PHP dirname() (original) (raw)
Summary: in this tutorial, you will learn how to use the PHP dirname()
function to get the parent directory’s path of a file or directory path.
Introduction to the PHP dirname() function #
The dirname()
function accepts a path and returns a parent directory’s path:
dirname ( string <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>p</mi><mi>a</mi><mi>t</mi><mi>h</mi><mo separator="true">,</mo><mi>i</mi><mi>n</mi><mi>t</mi></mrow><annotation encoding="application/x-tex">path , int </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:0.8889em;vertical-align:-0.1944em;"></span><span class="mord mathnormal">p</span><span class="mord mathnormal">a</span><span class="mord mathnormal">t</span><span class="mord mathnormal">h</span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.1667em;"></span><span class="mord mathnormal">in</span><span class="mord mathnormal">t</span></span></span></span>levels = 1 ) : string
Code language: PHP (php)
The dirname()
function has two parameters:
$path
is the file or directory path in which you want to get the parent’s directory path.$levels
is the number of parent directories to go up. The$levels
must be an integer that is greater than zero.
The dirname()
returns the parent directory’s path that is $levels
up from the current directory.
Note that you can use both slash (/
) and backslash (\
) as the directory separator character on Windows and the forward-slash (/
) on other environments such as Linux and macOS.
PHP dirname() function example #
The following example uses the dirname()
function to get the parent directory’s path:
`<?php
echo '1.' , dirname("/htdocs/public") , PHP_EOL; echo '2.' , dirname("/htdocs/") , PHP_EOL; echo '3.' , dirname(".") , PHP_EOL; echo '4.' , dirname("C:\") , PHP_EOL; echo '5.' , dirname("/htdocs/public/css/dev", 2);`Code language: HTML, XML (xml)
Output:
1./htdocs 2.\ 3.. 4.C:\ 5./htdocs/public
Code language: plaintext (plaintext)
Summary #
- Use the PHP
dirname()
function to get the parent directory’s path of a file or directory path.
Did you find this tutorial useful?