<div class="codebody" id="code4843">
function rolling_curl($urls,$delay) {
$queue = curl_multi_init();
$map = array(); foreach ($urls as $url) {
$ch = curl_init(); curl_setopt($ch,$url);
curl_setopt($ch,true); curl_multi_add_handle($queue,$ch);
$map[(string) $ch] = $url;
} $responses = array();
do {
while (($code = curl_multi_exec($queue,$active)) == CURLM_CALL_MULTI_PERFORM) ; if ($code != CURLM_OK) { break; } // a request was just completed -- find out which one
while ($done = curl_multi_info_read($queue)) { // get the info and content returned on the request
$info = curl_getinfo($done['handle']);
$error = curl_error($done['handle']);
$results = callback(curl_multi_getcontent($done['handle']),$delay);
$responses[$map[(string) $done['handle']]] = compact('info','error','results'); // remove the curl handle that just completed
curl_multi_remove_handle($queue,$done['handle']);
curl_close($done['handle']);
} // Block for data in / output; error handling is done by curl_multi_exec
if ($active > 0) {
curl_multi_select($queue,0.5);
} } while ($active); curl_multi_close($queue);
return $responses;
}