指定域名对应ip请求

curl-resolve.php

<?php

$data = [];

$ch = curl_init();
curl_setopt($ch, CURLOPT_RESOLVE, ['api.example.com:80:127.0.0.1']);
curl_setopt($ch, CURLOPT_PORT, 80);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_URL, 'http://api.example.com/api/test/123');
$response = curl_exec($ch);

var_dump($response);