is_file
(PHP 3, PHP 4, PHP 5)
is_file -- Tells whether the filename is a regular file
Description
bool
is_file ( string filename )
Tells whether the given file is a regular file.
Parameters
filename
Path to the file.
Return Values
Returns TRUE if the filename exists and is a regular file, FALSE
otherwise.
Examples
Example 1. is_file() example
<?php
var_dump(is_file('a_file.txt')) . "\n";
var_dump(is_file('/usr/bin/')) . "\n";
?>
|
The above example will output: |
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.