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<?php
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namespace App\Lib;
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use DateTime;
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class Tools{
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//根据当前日期和身份证获取年龄
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public static function calculateAgeFromID($idNumber, $targetDate) {
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// 提取出生年月日
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$birthYear = substr($idNumber, 6, 4);
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$birthMonth = substr($idNumber, 10, 2);
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$birthDay = substr($idNumber, 12, 2);
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// 创建出生日期和目标日期的 DateTime 对象
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$birthdate = new DateTime("$birthYear-$birthMonth-$birthDay");
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$target = new DateTime($targetDate);
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// 计算年龄
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$interval = $birthdate->diff($target);
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// 使用正确的属性获取年龄
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$age = $interval->y;
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return $age;
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}
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//根据身份证获取生日
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public static function getBirthdayFromIDCard($idCard) {
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// 检查身份证号码是否有效
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if (!preg_match("/^(\d{15}$|^\d{17}[xX\d]$)/", $idCard)) {
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return false;
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}
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// 提取出生日期部分
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$birthday = substr($idCard, 6, 8);
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// 如果是15位的身份证号码，需要将年份从两位扩展到四位（假设1900-2000）
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if (strlen($idCard) == 15) {
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$year = substr($birthday, 0, 2);
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if ($year >= 0 && $year <= 20) { // 2000-2020
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$birthday = '20' . $birthday;
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} else { // 1900-1999
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$birthday = '19' . $birthday;
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}
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}
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// 格式化并返回日期字符串
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return date('Y-m-d', strtotime($birthday));
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}
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//根据身份证判断性别
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public static function getGenderFromIDCard($idCard) {
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// 检查身份证号是否合法（长度应该是18）
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if (strlen($idCard) != 18) {
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return null;
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}
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// 获取身份证号的第17位
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$genderBit = intval($idCard[16]);
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// 判断性别
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if ($genderBit % 2 == 0) {
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return 0;
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} else {
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return 1;
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}
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}
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}
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