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@@ -0,0 +1,103 @@
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+<?php
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+
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+namespace loyalsoft;
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+
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+/**
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+ * Description of IDCardValiUtil
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+ * 身份证校验类
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+ * @author gwang
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+ */
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+class IDCardValiUtil {
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+
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+ /**
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+ * 校验
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+ * @param type $id_card
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+ * @return boolean
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+ */
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+ static function validation_filter_id_card($id_card) {
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+ if (strlen($id_card) == 18) {
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+ return self::idcard_checksum18($id_card);
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+ } elseif ((strlen($id_card) == 15)) {
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+ $id_card = self::idcard_15to18($id_card);
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+ return self::idcard_checksum18($id_card);
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+ } else {
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+ return false;
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+ }
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+ }
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+
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+ /**
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+ * 计算身份证校验码,根据国家标准GB 11643-1999
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+ * @param type $idcard_base
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+ * @return boolean|string
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+ */
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+ static function idcard_verify_number($idcard_base) {
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+ if (strlen($idcard_base) != 17) {
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+ return false;
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+ }
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+ //加权因子
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+ $factor = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
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+ //校验码对应值
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+ $verify_number_list = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
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+ $checksum = 0;
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+ for ($i = 0; $i < strlen($idcard_base); $i++) {
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+ $checksum += substr($idcard_base, $i, 1) * $factor[$i];
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+ }
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+ $mod = $checksum % 11;
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+ $verify_number = $verify_number_list[$mod];
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+ return $verify_number;
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+ }
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+
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+ /**
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+ * 将15位身份证升级到18位
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+ * @param type $idcard
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+ * @return boolean|string
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+ */
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+ static function idcard_15to18($idcard) {
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+ if (strlen($idcard) != 15) {
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+ return false;
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+ } else {
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+ // 如果身份证顺序码是996 997 998 999,这些是为百岁以上老人的特殊编码
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+ if (array_search(substr($idcard, 12, 3), array('996', '997', '998', '999')) !== false) {
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+ $idcard = substr($idcard, 0, 6) . '18' . substr($idcard, 6, 9);
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+ } else {
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+ $idcard = substr($idcard, 0, 6) . '19' . substr($idcard, 6, 9);
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+ }
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+ }
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+ $idcard = $idcard . self::idcard_verify_number($idcard);
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+ return $idcard;
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+ }
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+
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+ /**
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+ * 18位身份证校验码有效性检查
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+ * @param type $idcard
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+ * @return boolean
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+ */
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+ static function idcard_checksum18($idcard) {
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+ if (strlen($idcard) != 18) {
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+ return false;
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+ }
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+ $idcard_base = substr($idcard, 0, 17);
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+ if (self::idcard_verify_number($idcard_base) != strtoupper(substr($idcard, 17, 1))) {
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+ return false;
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+ } else {
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+ return true;
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+ }
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+ }
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+
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+ /**
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+ * 根据给定身份证号码推算当前年龄
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+ * @param type $idcard
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+ * @return type
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+ */
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+ static function idcard_getage($idcard) {
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+ if (self::validation_filter_id_card($idcard)) {
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+ if ((strlen($idcard) == 15)) {
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+ $idcard = self::idcard_15to18($idcard);
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+ }
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+ $bird_year = substr($idcard, 6, 4);
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+ return date("Y") - $bird_year;
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+ }
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+ return -1;
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+ }
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+
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+}
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