3v4l.org

run code in 500+ PHP versions simultaneously
<?php function example(int|string $arg) : int|string { return $arg; } var_dump(example("foo")); var_dump(example(42));
Output for 7.4.0 - 7.4.33
Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) in /in/Y5Vrb on line 3
Process exited with code 255.
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
string(3) "foo" int(42)
preferences:
28.69 ms | 1140 KiB | 9 Q