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@ 2013-09-10T11:59:18Z

<?php

$data = array('0' => 'A_VALUE');

foreach ($data as $key => $value) {
  if ('0' == "password") {
    print_r($key);
    print_r('key matches');
  }
}

Output
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print_r: documentation ( source)

preferences:dark modelive preview

32.62 ms | 402 KiB | 5 Q