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@ 2013-04-14T04:50:56Z

<?php
$arr = array(1, 2, 3, 4, 5);

foreach($arr  as $key => $row) {
    echo key($arr);
}

Output
Performance
VLD
References
Branches

key: documentation ( source)

preferences:dark modelive preview

37.7 ms | 402 KiB | 5 Q