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run code in 300+ PHP versions simultaneously
<?php class Foo { public static $bar = 5; } class Baz extends Foo { } var_dump(property_exists(new Foo(), 'bar')); var_dump(property_exists('Foo', 'bar')); var_dump(property_exists(new Baz(), 'bar')); var_dump(property_exists('Baz', 'bar'));

preferences:
31.53 ms | 402 KiB | 5 Q