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@ 2015-08-19T13:44:04Z

<?php

$f = new ReflectionClass('ArrayObject');

$c = $f->getConstructor();

$params = $c->getParameters();

$param = $params[0];

var_dump($param->isOptional());

Output
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var_dump: documentation ( source)

preferences:dark modelive preview

62.42 ms | 402 KiB | 5 Q