Question

I’m just playing around here, my code:

<?php

function test(string $str, array $arr = array()) {
    echo $str;
}
test('something');

Which results in:

Catchable fatal error: Argument 1 passed to test() must be an instance of string, string given

I’m curious why I can precede $arr with array without any problems, but I cannot precede $str with string?

Answer 1

String isn’t a supported type hint as of yet

Edit: see http://php.net/manual/en/language.types.type-juggling.php

and

http://php.net/manual/en/language.oop5.typehinting.php