严格检查身份证是否正确

function checkNum($num_id) { $num_id = strtoupper($num_id); $regx = "/^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$|^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1]

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