file_exists

(PHP 3, PHP 4, PHP 5)

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.

ÐáñÜäåéãìá 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";
}
?>

Óçìåßùóç: Τα αποτελέσματα αυτής της συνάρτησης έχουν γίνει cache. Δείτε την clearstatcache() για περισσότερες πληροφορίες.

Õðüäåéîç: As of PHP 5.0.0 this function can also be used with some URL wrappers. Refer to ÐáñÜñôçìá M for a listing of which wrappers support stat() family of functionality.

Ðñïåéäïðïßçóç

This function returns FALSE for files inaccessible due to safe mode restrictions. However these files still can be included if they are located in safe_mode_include_dir.

See also is_readable(), is_writable(), is_file() and file().