<?php
function expect_an_exception(Exception $e){}
function expect_a_string(string $string){}
expect_an_exception(new Exception('Division by zero.'));
expect_a_string("hello");
Catchable fatal error: Argument 1 passed to expect_a_string() must be an instance of string, string given, called in /in/PDL1F on line 6 and defined in /in/PDL1F on line 4
Process exited with code 255.
Output for 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/PDL1F on line 3
Process exited with code 255.