3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { const MY_CONST = bar::class; public function __construct() { [self::MY_CONST, "message"](); } } class bar { public static function message() { echo "hello"; } } new foo();
based on dt2VO
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.21, 7.4.0 - 7.4.10, 8.0.0alpha1 - beta3
hello
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '(' in /in/4jB0Z on line 8
Process exited with code 255.