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@ 2017-07-11T19:59:24Z

<?php

function check_successCode($code)
    {
        if (ctype_digit($code) && ((int) $code == 0)) {
            return true;
        }
        return false;
    }
    
    var_dump(check_successCode(0));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
ctype_digit: documentation ( source)

preferences:dark modelive preview

40.91 ms | 402 KiB | 5 Q