身份证校验码的计算

原来我的ID最后一位X其实是2了。

1. public function id_verify($my_id) {
3. $coefficient = array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
5. $remainder_map = array(1,0,'X',9,8,7,6,5,4,3,2);
7. $count = 0;
9. for ($i=0; $i
10. $count += $my_id[$i] * $coefficient[$i];
11. }
13. $remainder = $count % 11;
15. if ($my_id[17] == $remainder_map[$remainder]){
17. echo 'true';
18. }else{
20. echo 'false';
21. }
22. }

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