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@ 2017-05-31T21:47:31Z

<?php

class Foo implements IteratorAggregate {
    public function getIterator() { yield; }
}

var_dump((new ReflectionClass('Foo'))->isIterateable());

Output
Performance
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References
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var_dump: documentation ( source)

preferences:dark modelive preview

32.18 ms | 404 KiB | 5 Q