59 lines
1.4 KiB
PHP
59 lines
1.4 KiB
PHP
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<?php
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namespace app\inquiry\utils;
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use support\Db;
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class PhoneCountryHelper
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{
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/**
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* 根据电话/WhatsApp 号码识别国家 ID
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* 号码格式可以是：+996557660304、996557660304、00996557660304 等
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*/
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public static function detectCountryId(?string $rawPhone): ?int
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{
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if (!$rawPhone) {
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return null;
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}
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// 1. 只保留数字和+
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$phone = preg_replace('/[^\d\+]/', '', $rawPhone);
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if ($phone === '' || $phone === null) {
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return null;
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}
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// 2. 统一前缀：00 开头 -> +
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if (str_starts_with($phone, '00')) {
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$phone = '+' . substr($phone, 2);
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} elseif ($phone[0] !== '+') {
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// 没有 +，默认补一个（大多数线索都是国际号）
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$phone = '+' . $phone;
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}
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$digits = ltrim($phone, '+');
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if ($digits === '') {
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return null;
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}
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// 3. 国家区号最长 3 位，从长到短匹配
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for ($len = 3; $len >= 1; $len--) {
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$code = substr($digits, 0, $len);
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if ($code === '') {
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continue;
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}
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$country = Db::table('country')
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->where('phone_code', $code)
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->first();
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if ($country) {
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return (int)$country->id;
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}
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}
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// 没找到
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return null;
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}
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}
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