cannot be empty

Description

The provided parameter is of the valid type, but cannot be left empty.

Example

<?php

print_r(explode('', 'abc')); // Not possible with an empty delimiter

print_r(str_split(1, 'abc'));

?>

Solutions

• When parsing data, make sure that the separator is not empty.

In previous PHP versions, this error message used to be Empty delimiter.

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