is_dir
(PHP 4, PHP 5)
is_dir — 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.
Παραδείγματα
Example#1 is_dir() example
<?php
var_dump(is_dir('a_file.txt')) . "\n";
var_dump(is_dir('bogus_dir/abc')) . "\n";
var_dump(is_dir('..')); //one dir up
?>
The above example will output:
bool(false) bool(false) bool(true)
Notes
Note: Τα αποτελέσματα αυτής της συνάρτησης έχουν γίνει cache. Δείτε την clearstatcache() για περισσότερες πληροφορίες.
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.