## Example

`

     bool file_exists ( string $filename )

`

## Description

Checks whether a file or directory exists.

## Return Values

Returns TRUE if the file or directory specified by filename exists; FALSE otherwise. Note: This function will return FALSE for symlinks pointing to non-existing files. Warning 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. Note: The check is done using the real UID/GID instead of the effective one. Note: Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB.