3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr=json_decode('{"account":"user12","date":"2012-10-01 12:32:00","paymentType":"mc","projectId":"519","sum":"10.00","sign":"9bdf52a4830779a1383ac24f1b3ed054","unitpayId":"1234567","profit":"10.00"}'); $arr = array($arr); ksort($arr); echo md5(join(null,$arr));

preferences:
40.96 ms | 402 KiB | 5 Q