File_exists-check whether the file or directory exists

File_exists
(PHP 4 and PHP 5)



Description
Boolean file_exists (string $ file name)
Check whether a file or directory exists.

Parameters

File name
Path.

In Windows, use // Computer Name/shared/file name or computer name shared file name to check files on network sharing.


Return value
Returns TRUE if the specified file or directory file name exists, except FALSE.

Note: This function will return a FALSE symbolic link pointing to a non-existent file.


Warning
This function returns FALSE files because it is unable to enter the security mode. But these files can also contain if they are located in safe_mode_include_dir.

Note: The check results use real UID/GID and are not valid.


Instance

For example, if the #1 test 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 ";
}
?>