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@ 2016-01-05T16:06:09Z

<?php

$var = array(
    'a' => 'a',
    'b' => 'b',
);

foreach ($var as $value) {
}

var_dump(key($var));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
key: documentation ( source)

preferences:dark modelive preview

57.78 ms | 402 KiB | 5 Q