PHP 多进程实践（3）

 $task){     $ch[$i] = curl_init();     curl_setopt($ch[$i], CURLOPT_URL, $task);     curl_setopt($ch[$i], CURLOPT_RETURNTRANSFER, 1);     curl_multi_add_handle($mh, $ch[$i]);}do {$mrc = curl_multi_exec($mh,$active); } while ($mrc == CURLM_CALL_MULTI_PERFORM);while ($active && $mrc == CURLM_OK) {     if (curl_multi_select($mh) != -1) {       do {$mrc = curl_multi_exec($mh, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM);     }}// completed, checkout resultforeach ($tasks as $j => $task){     if (curl_error($ch[$j])){          echo "task ${j} [$task ] error " , curl_error($ch[$j]), "\r\n" ;     } else {          echo "task ${j} [$task ] get: \r\n" , curl_multi_getcontent($ch[$j]), "\r\n" ;     }}?>