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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')); 

?>

Alternatives

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

In previous PHP versions, this error message used to be :ref:empty-delimiter. In more recent PHP versions, this error message is now :ref:must-not-be-empty.