3v4l.org

run code in 500+ PHP versions simultaneously
<?php class A { protected static $aliases = []; public static function doSomething() { foreach (static::$aliases as $column => $alias) { // do something echo "$column: $alias" . PHP_EOL; } } } class B extends A { protected static $aliases = [ 'id' => 'real_id', 'name' => 'real_name', ]; } $obj = B::doSomething();
Output for 5.6.38, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 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
id: real_id name: real_name

preferences:
99.77 ms | 1446 KiB | 4 Q