is_dir
(PHP 3, PHP 4 , PHP 5)
is_dir -- Tells whether the filename is a directory
Description
bool
is_dir ( string filename )
Returns TRUE if the filename exists and is a directory. If
filename is a relative filename, it will be
checked relative to the current working directory.
Note: The results of this
function are cached. See clearstatcache() for
more details.
Example 1. is_dir() example
<?
var_dump(is_dir('a_file.txt')) . "\n";
var_dump(is_dir('bogus_dir/abc')) . "\n";
var_dump(is_dir('..')); //one dir up
?>
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The above example will output: bool(false)
bool(false)
bool(true) |
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Tip: As of PHP 5.0.0 this function
can also be used with some URL wrappers. Refer to
Appendix L for a listing of which wrappers support
stat() family of functionality.
See also chdir(), dir,
opendir(), is_file() and
is_link().