3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class Foo {} function myadd(int $a, int $b): Foo { return $a + $b . "hello"; } echo myadd(6, 7);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: myadd(): Return value must be of type Foo, string returned in /in/ZJJq6:7 Stack trace: #0 /in/ZJJq6(10): myadd(6, 7) #1 {main} thrown in /in/ZJJq6 on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Return value of myadd() must be an instance of Foo, string returned in /in/ZJJq6:7 Stack trace: #0 /in/ZJJq6(10): myadd(6, 7) #1 {main} thrown in /in/ZJJq6 on line 7
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/ZJJq6 on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/ZJJq6 on line 6
Process exited with code 255.

preferences:
166.47 ms | 402 KiB | 212 Q