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file_exists
Checks whether a file or directory exists
(PHP 4, PHP 5)
bool file_exists ( string filename )
Parameters
- filename
Path to the file or directory.
On windows, use
//computername/share/filenameor\\computername\share\filenameto check files on network shares.
Return Values
Returns TRUE if the file or directory specified by
filename exists; FALSE otherwise.
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.
The check is done using the real UID/GID instead of the effective one.
Examples
Example 629. 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";
}
?>
Notes
The results of this function are cached. See clearstatcache() for more details.
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.