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is_file

Tells whether the filename is a regular file (PHP 4, PHP 5)
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 655. is_file() example

<?php
var_dump
(is_file('a_file.txt')) . "\n";
var_dump(is_file('/usr/bin/')) . "\n";
?>

The above example will output:

bool(true)
bool(false)


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, List of Supported Protocols/Wrappers for a listing of which wrappers support stat() family of functionality.