3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); function myadd(int $a, int $b): int { return $a + $b . "hello"; } echo myadd(6, 7);
based on 8PjtM
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Return value of myadd() must be of the type integer, string returned in /in/4v8RS:5 Stack trace: #0 /in/4v8RS(8): myadd(6, 7) #1 {main} thrown in /in/4v8RS on line 5
Process exited with code 255.
Output for 5.3.20 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/4v8RS on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/4v8RS on line 4
Process exited with code 255.