FIEND寫的 - 身份證字串檢查##################################### 文章來源 : http://www.twbb.org# 作者 : FIEND (fiend@twbb.org) # 信箱 : fiend@twbb.org#################################### //身份證字串檢查 function check_nick($id) { $flag = false; $id = strtoupper($id); //將英文字母全部轉成大寫 $id_len = strlen($id); //取得字元長度 if($id_len <= 0) { return false; exit; } if ($id_len > 10) { return false; exit; } if ($id_len < 10 && $id_len > 0) { return false; exit; } //檢查 第一個字母是否為英文字 $id_sub1 = substr($id,0,1); // 從第一個字元開始 取得字串 $id_sub1 = ord($id_sub1); // 回傳字串的acsii 碼 if ($id_sub1 > 90 || $id_sub1 < 65) { return false; exit; } //檢查 身份證字號的 第二個字元 男生或女生 $id_sub2 = substr($id,1,1); if($id_sub2 !="1" && $id_sub2 != "2") { return false; exit; } for ($i=1;$i<10;$i++) { $id_sub3 = substr($id,$i,1); $id_sub3 = ord($id_sub3); if ($id_sub3 > 57 || $id_sub3 < 48) { $n=$i+1; return false; exit; } } $num=array("A" => "10","B" => "11","C" => "12","D" => "13","E" => "14", "F" => "15","G" => "16","H" => "17","J" => "18","K" => "19","L" => "20", "M" => "21","N" => "22","P" => "23","Q" => "24","R" => "25","S" => "26", "T" => "27","U" => "28","V" => "29","X" => "30","Y" => "31","W" => "32", "Z" => "33","I" => "34","O" => "35"); $d1 = substr($id,0,1); // 從第一個字元開始 取得字串 $n1=substr($num$$d1],0,1)+(substr($num$$d1],1,1)*9); $n2=0; //初使化 for ($j=1;$j<9;$j++) { $d4=substr($id,$j,1); $n2=$n2+$d4*(9-$j); } $n3=$n1+$n2+substr($id,9,1); if(($n3 % 10)!= 0) { return false; exit; } return $this->error = true; .
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