<?php class A { public function __construct(final string $foo) { } } $a = new A('test'); $c = new ReflectionClass($a); foreach ($c->getProperties() as $prop) { var_dump($prop->isFinal()); var_dump($prop->isPromoted()); } var_dump($a->foo);
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Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).