3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); function foo(int $foo) { echo $foo; } foo(1); foo('hi');
based on vi5Ek
Output for 7.0.0 - 7.2.0
1 Fatal error: Uncaught TypeError: Argument 1 passed to foo() must be of the type integer, string given, called in /in/oHkfI on line 10 and defined in /in/oHkfI:5 Stack trace: #0 /in/oHkfI(10): foo('hi') #1 {main} thrown in /in/oHkfI on line 5
Process exited with code 255.
Output for 5.3.20 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/oHkfI on line 3 Catchable fatal error: Argument 1 passed to foo() must be an instance of int, integer given, called in /in/oHkfI on line 9 and defined in /in/oHkfI on line 5
Process exited with code 255.