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@ 2015-11-10T12:03:12Z

<?php
$keyId = '077961391017d549';

$keyId = str_replace(array(' ', '-'), '', $keyId);
        $keyId = $this->hex2bin($keyId);
        var_dump(strlen($keyId));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
str_replace: documentation ( source)

preferences:dark modelive preview

41.63 ms | 402 KiB | 5 Q