if (!function_exists('VerifyIdCardNo')) {
    function VerifyIdCardNo($idCardNo)
    {
        $iW        = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
        $szVerCode = "10X98765432";
        $sum       = 0;
        for ($i = 0; $i < 17; $i++) {
            $sum += $idCardNo[$i] * $iW[$i];
        }
        $iy        = $sum % 11;
        $verifyBit = $szVerCode[$iy];
        if ($verifyBit == $idCardNo[17]) {
            return true;
        } else {
            return false;
        }
    }
}

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