PHP reference

mkdir

Creates a folder.

Syntax

mkdir(string $directory, int $permissions = 0777, bool $recursive = false): bool

Parameter	Type	Description
$directory	string	The path of the new folder.
$permissions	int	Optional. The access permissions; ignored on Windows.
$recursive	bool	Optional. `true` creates the whole chain of nested folders.

bool`true` if the folder was created.

Nested folders in one call:

<?php
 
$dir = sys_get_temp_dir() . '/ref-shop/images/small';
 
if (!is_dir($dir)) {
    mkdir($dir, 0777, true);
}
 
var_dump(is_dir($dir));

Output:

bool(true)

Creating a folder that already exists raises a warning, so is_dir() is checked before the call.

Folders and paths — Working with folders in PHP — creating them, listing files, searching by a mask, parts of a path and file information.