| //身份證號驗證 |
| 03 | protected function checkIdCard(){ |
| 04 | if(empty($_POST['idcard'])){ |
| 05 | return false; |
| 06 | } |
| 07 | $idcard = $_POST['idcard']; |
| 08 | $City = array(11=& gt;"北京",12=>"天津",13=>"河北",14=>"山西",15=>"內蒙古",21=>"遼 寧",22=>"吉林",23=>"黑龍江",31=>"上海",32=>"江蘇",33=>"浙江",34=>" 安徽",35=>"福建",36=>"江西",37=>"山東",41=>"河南",42=>"湖北",43=>" 湖南",44=>"廣東",45=>"廣西",46=>"海南",50=>"重慶",51=>"四川",52=>" 貴州",53=>"云南",54=>"西藏",61=>"陜西",62=>"甘肅",63=>"青海",64=>" 寧夏",65=>"新疆",71=>"臺灣",81=>"香港",82=>"澳門",91=>"國外"); |
| 09 | $iSum = 0; |
| 10 | $idCardLength = strlen($idcard); |
| 11 | //長度驗證 |
| 12 | if(!preg_match('/^\d{17}(\d|x)$/i',$idcard) and!preg_match('/^\d{15}$/i',$idcard)) |
| 13 | { |
| 14 | return false; |
| 15 | } |
| 16 | //地區驗證 |
| 17 | if(!array_key_exists(intval(substr($idcard,0,2)),$City)) |
| 18 | { |
| 19 | return false; |
| 20 | } |
| 21 | // 15位身份證驗證生日，轉換為18位 |
| 22 | if ($idCardLength == 15) |
| 23 | { |
| 24 | $sBirthday = '19'.substr($idcard,6,2).'-'.substr($idcard,8,2).'-'.substr($idcard,10,2); |
| 25 | $d = new DateTime($sBirthday); |
| 26 | $dd = $d->format('Y-m-d'); |
| 27 | if($sBirthday != $dd) |
| 28 | { |
| 29 | return false; |
| 30 | } |
| 31 | $idcard = substr($idcard,0,6)."19".substr($idcard,6,9);//15to18 |
| 32 | $Bit18 = getVerifyBit($idcard);//算出第18位校驗碼 |
| 33 | $idcard = $idcard.$Bit18; |
| 34 | } |
| 35 | // 判斷是否大于2078年，小于1900年 |
| 36 | $year = substr($idcard,6,4); |
| 37 | if ($year<1900 || $year>2078 ) |
| 38 | { |
| 39 | return false; |
| 40 | } |
| 41 |
| 42 | //18位身份證處理 |
| 43 | $sBirthday = substr($idcard,6,4).'-'.substr($idcard,10,2).'-'.substr($idcard,12,2); |
| 44 | $d = new DateTime($sBirthday); |
| 45 | $dd = $d->format('Y-m-d'); |
| 46 | if($sBirthday != $dd) |
| 47 | { |
| 48 | return false; |
| 49 | } |
| 50 | //身份證編碼規范驗證 |
| 51 | $idcard_base = substr($idcard,0,17); |
| 52 | if(strtoupper(substr($idcard,17,1)) != getVerifyBit($idcard_base)) |
| 53 | { |
| 54 | return false; |
| 55 | } |
| 56 | return $_POST['idcard']; |
| 57 | } |
| 58 |
| 59 | // 計算身份證校驗碼，根據國家標準GB 11643-1999 |
| 60 | function getVerifyBit($idcard_base) |
| 61 | { |
| 62 | if(strlen($idcard_base) != 17) |
| 63 | { |
| 64 | return false; |
| 65 | } |
| 66 | //加權因子 |
| 67 | $factor = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); |
| 68 | //校驗碼對應值 |
| 69 | $verify_number_list = array('1', '0', 'X', '9', '8', '7', '6', '5', '4','3', '2'); |
| 70 | $checksum = 0; |
| 71 | for ($i = 0; $i < strlen($idcard_base); $i++) |
| 72 | { |
| 73 | $checksum += substr($idcard_base, $i, 1) * $factor[$i]; |
| 74 | } |
| 75 | $mod = $checksum % 11; |
| 76 | $verify_number = $verify_number_list[$mod]; |
| 77 | return $verify_number; |
| 78 | } |