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run code in 300+ PHP versions simultaneously
<?php function config($key): string { $arr = ["protocol"=> "https", "port"=> "80", "website"=>"wwww.example.com"]; return array_key_exists($key, $arr) ? $arr[$key] : null; } function myfunc(){ echo config("port"); } myfunc();
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
80

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119.58 ms | 1563 KiB | 4 Q