mkdir

(PHP 4, PHP 5, PHP 7)
Makes directory
bool mkdir ( string $pathname [, int $mode = 0777 [, bool $recursive = false [, resource $context ]]] )

Attempts to create the directory specified by pathname.

Parameters:
pathname

The directory path.

mode

The mode is 0777 by default, which means the widest possible access. For more information on modes, read the details on the chmod() page.

Note:

mode is ignored on Windows.

Note that you probably want to specify the mode as an octal number, which means it should have a leading zero. The mode is also modified by the current umask, which you can change using umask().

recursive

Allows the creation of nested directories specified in the pathname.

context

Note: Context support was added with PHP 5.0.0. For a description of contexts, refer to Streams.

Returns:

Returns TRUE on success or FALSE on failure.

Exception:

Emits an E_WARNING level error if the directory already exists.

Emits an E_WARNING level error if the relevant permissions prevent creating the directory.

Notes:
When safe mode is enabled, PHP checks whether the directory in which the script is operating has the same UID (owner) as the script that is being executed.
Examples:
mkdir() example
<?php
mkdir("/path/to/my/dir", 0700);
?>

mkdir() using the recursive parameter
<?php
// Desired folder structure
$structure = './depth1/depth2/depth3/';

// To create the nested structure, the $recursive parameter 
// to mkdir() must be specified.

if (!mkdir($structure, 0777, true)) {
    die('Failed to create folders...');
}

// ...
?>

See also:

is_dir() -

rmdir() -

doc_php
2016-02-24 15:56:56
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