這篇文章主要為大家分享了兩段php驗證身份證號碼是否正確的函數,感興趣的小伙伴們可以參考一下
身份證驗證最簡單的就是判斷長度了,當然這種非常簡單破了如果要更規(guī)則一點我們需要對身份證號碼進行一些按生成規(guī)則驗證了,下面整理了一些函數我們來看看。
例子,今天分享一個php驗證身份證號碼是否正確函數.
/********************php驗證身份證號碼是否正確函數*********************/ function is_idcard( $id ) { $id = strtoupper($id); $regx = "/(^\d{15}$)|(^\d{17}([0-9]|X)$)/"; $arr_split = array(); if(!preg_match($regx, $id)) { return FALSE; } if(15==strlen($id)) //檢查15位 { $regx = "/^(\d{6})+(\d{2})+(\d{2})+(\d{2})+(\d{3})$/"; @preg_match($regx, $id, $arr_split); //檢查生日日期是否正確 $dtm_birth = "19".$arr_split[2] . '/' . $arr_split[3]. '/' .$arr_split[4]; if(!strtotime($dtm_birth)) { return FALSE; } else { return TRUE; } } else //檢查18位 { $regx = "/^(\d{6})+(\d{4})+(\d{2})+(\d{2})+(\d{3})([0-9]|X)$/"; @preg_match($regx, $id, $arr_split); $dtm_birth = $arr_split[2] . '/' . $arr_split[3]. '/' .$arr_split[4]; if(!strtotime($dtm_birth)) //檢查生日日期是否正確 { return FALSE; } else { //檢驗18位身份證的校驗碼是否正確。 //校驗位按照ISO 7064:1983.MOD 11-2的規(guī)定生成,X可以認為是數字10。 $arr_int = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); $arr_ch = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); $sign = 0; for ( $i = 0; $i < 17; $i++ ) { $b = (int) $id{$i}; $w = $arr_int[$i]; $sign += $b * $w; } $n = $sign % 11; $val_num = $arr_ch[$n]; if ($val_num != substr($id,17, 1)) { return FALSE; } //phpfensi.com else { return TRUE; } } } }
調用身份證驗證函數
$idc=is_idcard("身份證號碼");
if($idc){echo "正確";}else{echo "錯誤";}
例子二:
function validation_filter_id_card($id_card){ if(strlen($id_card)==18){ return idcard_checksum18($id_card); }elseif((strlen($id_card)==15)){ $id_card=idcard_15to18($id_card); return idcard_checksum18($id_card); }else{ return false; } } // 計算身份證校驗碼,根據國家標準GB 11643-1999 function idcard_verify_number($idcard_base){ if(strlen($idcard_base)!=17){ return false; } //加權因子 $factor=array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2); //校驗碼對應值 $verify_number_list=array('1','0','X','9','8','7','6','5','4','3','2'); $checksum=0; for($i=0;$i<strlen($idcard_base);$i++){ $checksum += substr($idcard_base,$i,1) * $factor[$i]; } $mod=$checksum % 11; $verify_number=$verify_number_list[$mod]; return $verify_number; } // 將15位身份證升級到18位 function idcard_15to18($idcard){ if(strlen($idcard)!=15){ return false; }else{ // 如果身份證順序碼是996 997 998 999,這些是為百歲以上老人的特殊編碼 if(array_search(substr($idcard,12,3),array('996','997','998','999')) !== false){ $idcard=substr($idcard,0,6).'18'.substr($idcard,6,9); }else{ $idcard=substr($idcard,0,6).'19'.substr($idcard,6,9); } } $idcard=$idcard.idcard_verify_number($idcard); return $idcard; } // 18位身份證校驗碼有效性檢查 function idcard_checksum18($idcard){ if(strlen($idcard)!=18){ return false; } $idcard_base=substr($idcard,0,17); if(idcard_verify_number($idcard_base)!=strtoupper(substr($idcard,17,1))){ return false; }else{ return true; } }
調用方法如:validation_filter_id_card('身份證號碼');
以上就是本文的全部內容,希望對大家的學習有所幫助。
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