is_dir
(PHP 3, 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.
Examples
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) |
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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
Appendix O for a listing of which wrappers support
stat() family of functionality.