is_dir
(PHP 4, PHP 5, PHP 7, PHP 8)
is_dir — Tells whether the 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. If filename is a symbolic or hard link
then the link will be resolved and checked. If you have enabled
open_basedir further
restrictions may apply.
Return Values
Returns true if the filename exists and is a directory, false
otherwise.
Errors/Exceptions
Upon failure, an E_WARNING is emitted.
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.
See Also
- chdir() - Change directory
- dir() - Return an instance of the Directory class
- opendir() - Open directory handle
- is_file() - Tells whether the filename is a regular file
- is_link() - Tells whether the filename is a symbolic link
glob
Filesystem Functions