UnexpectedValueException¶

The UnexpectedValueException exception is thrown if a value does not match with a set of expected values.

This happens when the value is not in a list of expected values, or if it is outside an interval of validity.

This exception is mainly thrown by the Phar and SPL extensions.

<?php

function foo(string $s) {
    if (empty($s)) {
       throw new \UnexpectedValueException('Foo() expects a non-empty string');
    }
}
?>

Added in PHP 5.1

PHP Dictionary