Type contains both true and false, bool must be used instead¶
Description¶
PHP has several types. They may combined to provide the same type safety one another: PHP reports those situations, and prevents them.
Here, the bool
type represents true|false
. So, when both true
and false
are used in the type, they should be replaced with bool
.
bool|true
or bool|false
yields another error; bool&true
is not possible, at all.
Example¶
<?php
function foo() : true|int|false {}
?>
Solutions¶
Use the bool type instead.
Remove the usage of either true or false, or both.