PHP: is_file function - 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:

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