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run code in 300+ PHP versions simultaneously
<?php class Foo { private static $test; public static function hasTest() { return !!static::$test; } public static function setTest($test) { static::$test = $test; } } class FooExtension extends Foo { } class_alias('FooExtension', 'FooAlias'); FooExtension::setTest('derp'); var_dump(FooAlias::hasTest());

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