is_file
(PHP 3, PHP 4, PHP 5)
is_file -- Tells whether the filename is a regular file
Description
bool
is_file ( string filename )
Returns TRUE if the filename exists and is a regular file.
範例 1. is_file() example
<?php var_dump(is_file('a_file.txt')) . "\n"; var_dump(is_file('/usr/bin/')) . "\n"; ?>
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The above example will output: |
提示: As of PHP 5.0.0 this function
can also be used with some URL wrappers. Refer to
附錄 M for a listing of which wrappers support
stat() family of functionality.
See also is_dir() and
is_link().