Path cannot be empty

Description

fopen()’s first argument is of type string, though the empty string is not allowed, as it does not lead to any file.

Example

<?php

fopen('', 'r');

?>

Literal Examples

• fopen(): Path cannot be empty

Solutions

• Check the name of the file with empty() before using it with fopen().

• Check the name of the file against ‘’ (empty string) before using it with fopen().

In previous PHP versions, this error message used to be Filename cannot be empty.

In more recent PHP versions, this error message is now Path must not be empty.