3v4l.org

run code in 500+ PHP versions simultaneously
<?php function demo( MissingClass|string $e ) { echo $e; } function demo2(): MissingClass|string { return "Or here\n"; } class WithProp { public MissingClass|string $val; public function __construct() { $this->val = "Or here either\n"; } } demo( "No errors here\n" ); print( demo2() ); $d = new WithProp(); echo $d->val;
Output for 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
No errors here Or here Or here either

preferences:
46.24 ms | 864 KiB | 4 Q