Php判断身份证号是否正确

有道云笔记
php判断身份证号.note

http://note.youdao.com/noteshare?id=a23c10f6649ed0a0bca9c3f28958f1a9
function judge_id($my_id)
{
\(id = strtoupper(\)my_id);
\(pattern = '/^\d{17}\d|X\)/';
if (preg_match($pattern, $id)) {
//定义身份证号前17位的校验权
$arr_right = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
//前17位运算后的正确校验码
$arr_valid = [1, 0, "X", 9, 8, 7, 6, 5, 4, 3, 2];
\(sum = 0; for (\)i = 0; \(i < count(\)arr_right); $i++) {
$sum += \(id[\)i] * \(arr_right[\)i];
}
$check_code = \(sum % 11; if (\)id[17] == \(arr_valid[\)check_code]) {
return 1;
} else {
return 0;
}
} else {
return 0;
}
}
\(my_id='3709';//18位的身份证号 echo judge_id(\)my_id);