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PHP mkdir() Function

PHP Filesystem Reference Complete PHP Filesystem Reference

Definition and Usage

The mkdir() function creates a directory.

This function returns TRUE on success, or FALSE on failure.

Syntax

mkdir(path,mode,recursive,context)

Parameter Description
path Required. Specifies the name of the directory to create
mode Optional. Specifies permissions. By default, the mode is 0777 (widest possible access).

The mode parameter consists of four numbers:

  • The first number is always zero
  • The second number specifies permissions for the owner
  • The third number specifies permissions for the owner's user group
  • The fourth number specifies permissions for everybody else

Possible values (to set multiple permissions, add up the following numbers):

  • 1 = execute permissions
  • 2 = write permissions
  • 4 = read permissions
recursive Optional. Specifies if the recursive mode is set (added in PHP 5)
context Optional. Specifies the context of the file handle. Context is a set of options that can modify the behavior of a stream (added in PHP 5)

Tips and Notes

Note: The mode parameters is ignored on Windows platforms.

Example

<?php
mkdir("testing");
?>

PHP Filesystem Reference Complete PHP Filesystem Reference
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