multi curl - FB - Desenvolvimento Web - https://www.facebook.com/groups/desenvolvimentoweb/permalink/3051116748280077/

multi-cURl-proxy.php

<?php 

$urlX = "https://jsonplaceholder.typicode.com/todos/"; //URL1 que retorna X
$urlY = "https://jsonplaceholder.typicode.com/users"; //URL2 que retorna Y
$multiHandler = curl_multi_init();

//URL1 - X
$curlX = curl_init();
curl_setopt($curlX, CURLOPT_URL, $urlX);
curl_setopt($curlX, CURLOPT_HEADER, 0);
curl_setopt($curlX, CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle($multiHandler, $curlX);

//URL2 - Y
$curlY = curl_init();
curl_setopt($curlY, CURLOPT_URL, $urlY);
curl_setopt($curlY, CURLOPT_HEADER, 0);
curl_setopt($curlY, CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle($multiHandler, $curlY);

//Executa
do {
  $status = curl_multi_exec($multiHandler, $active);
  if($active)
    curl_multi_selecT($multiHandler);
} while($active && $status == CURLM_OK);

//pega os dados
$result = array();
$result["X"] = curl_multi_getcontent($curlX);
$result["Y"] = curl_multi_getcontent($curlY);

//Remove os handlers e encerra o cURL
curl_multi_remove_handle($multiHandler, $curlX);
curl_multi_remove_handle($multiHandler, $curlY);
curl_multi_close($multiHandler);

//Devolve como um JSON, com as chaves X e Y
echo json_encode($result);