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@ 2015-07-22T12:33:28Z

<?php

class MyFilter extends FilterIterator
{
    public function accept()
    {
        return true;
    }
}

$it = new ArrayIterator(array(1, 2, 3));
$fi = new MyFilter($it);

var_dump($it->count());
var_dump($fi->count());

var_dump(count($it));
var_dump(count($fi));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

21.61 ms | 474 KiB | 4 Q