3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo(string $b) { return $b; } var_dump(foo(2015)); var_dump('foo' == (bool) 'foo');
based on JFuOl
Output for 7.0.0 - 7.2.0
string(4) "2015" bool(true)
Output for 5.3.19 - 5.6.28
Catchable fatal error: Argument 1 passed to foo() must be an instance of string, integer given, called in /in/vVFKW on line 7 and defined in /in/vVFKW on line 3
Process exited with code 255.