file_exists -- Checks whether a file or directory exists
Description
bool file_exists ( string filename)
Returns TRUE if the file or directory specified by filename exists; FALSE otherwise.
On windows, use //computername/share/filename or \\computername\share\filename to check files on network shares.
Example 1. Testing whether a file exists
<?php $filename = '/path/to/foo.txt';
if (file_exists($filename)) { echo "The file $filename exists"; } else { echo "The file $filename does not exist"; } ?>
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 J for a listing of which wrappers support stat() family of functionality.
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