PHP: is_dir function - Tells whether the filename is a directory

Description

bool is_dir ( string $filename )

Tells whether the given filename is a directory.

Parameters

filename: Path to the file. If filename is a relative filename, it will be checked relative to the current working directory.

Return Values

Returns TRUE if the filename exists and is a directory, FALSE otherwise.

Examples

Example #1 is_dir() example


<?php
var_dump(is_dir('a_file.txt'));
var_dump(is_dir('bogus_dir/abc'));

var_dump(is_dir('..')); //one dir up
?>

The above example will output:

bool(false)
bool(false)
bool(true)

Notes

Note: The results of this function are cached. See clearstatcache() for more details.

Tip

As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to List of Supported Protocols/Wrappers for a listing of which wrappers support stat() family of functionality.