PHP three a similar way to implement multithreading, PHP three multithreading similar _php tutorial

PHP three a similar way to implement multithreading, PHP three kinds of multithreading similar

1. Curl_multi method

When multi-threading is required, you can use Curl_multi to request multiple operations at once, but Curl is the network communication, the efficiency and reliability is relatively poor.

function Main () {$sql = "Select waybill_id,order_id from Waybill where status>40 order by update_time DESC LIMIT 10      "; $data = Yii::app ()->db->createcommand ($sql)->queryall ();           Yii Framework format foreach ($data as $k + $v) {if ($k% 2 = = 0) {//even send a URL $send _data[$k] [' url '] = ';        $send _data[$k [' body '] = $v [' waybill_id '];          } else {//odd send another URL $send _data[$k] [' url '] = ' http://www.abc.com ';        $send _data[$k [' Body ']=array ($v [' order_id '] = = Array (' extra ' = 16));      }} $back _data =sendmulitrequest ($send _data);    Var_dump ($back _data);     } function Sendmulitrequest ($send _data) {$params = array ();     $curl = $text = Array ();      $handle = Curl_multi_init (); foreach ($data as $k + $v) {if (Empty ($v [' url ')]) {$v [' url '] = ' http://www.xxx.com ';//if URL is emp        Ty,set defalut URL} $reqBody = Json_encode ($v [' body ']); $reqStream = Array (' Body ' = $reqBody,);        $encRequest = Base64_encode (Json_encode ($reqStream));       $params [' data '] = $encRequest;       $curl [$k] = Curl_init ();       curl_setopt ($curl [$k], Curlopt_url, $v [' URL ']);       curl_setopt ($curl [$k], Curlopt_post, TRUE);       curl_setopt ($curl [$k], Curlopt_header, 0);       curl_setopt ($curl [$k], Curlopt_postfields, Http_build_query ($params));       curl_setopt ($curl [$k], Curlopt_returntransfer, 1);     Curl_multi_add_handle ($handle, $curl [$k]);      } $active = null;      do {$MRC = Curl_multi_exec ($handle, $active);     } while ($MRC = = Curlm_call_multi_perform);  while ($active && $MRC = = CURLM_OK) {if (Curl_multi_select ($handle)! =-1) {do {$MRC          = Curl_multi_exec ($handle, $active);        } while ($MRC = = Curlm_call_multi_perform); }} foreach ($curl as $k = + $v) {if (Curl_error ($curl [$k]) = = "") {$text [$k] = (string) curl_ Multi_getcontent ($curl [$k]);        } curl_multi_remove_handle ($handle, $curl [$k]);     Curl_close ($curl [$k]);      } curl_multi_close ($handle);    return $text;  }

2, through the Stream_socket_client method

function Sendstream () {$english _format_number = Number_format ($number, 4, '. ', ');      echo $english _format_number;     Exit ();     $timeout = 10;     $result = Array ();     $sockets = Array ();     $convenient _read_block = 8192;     $host = "test.local.com";      $sql = "Select waybill_id,order_id from Xm_waybill where status>40 order by update_time desc LIMIT 1";     $data = Yii::app ()->db->createcommand ($sql)->queryall ();      $id = 0; foreach ($data as $k = + $v) {if ($k% 2 = = 0) {$send _data[$k] [' body '] = noticeorder::getsenddata ($v [' WA        ybill_id ']);        } else {$send _data[$k] [' body '] = array ($v [' order_id '] = = Array (' extra ' + 16));       } $data = Json_encode ($send _data[$k] [' body ']); $s = stream_socket_client ($host. ":", $errno, $errstr, $timeout, Stream_client_async_connect |       Stream_client_connect);         if ($s) {$sockets [$id + +] = $s; $http _message = "Get/php/test.php?data=". $data."Http/1.0\r\nhost:". $host.          "\r\n\r\n";       Fwrite ($s, $http _message); } else {echo "Stream". $id.       "Failed to open correctly.";        }} while (count ($sockets)) {$read = $sockets;        Stream_select ($read, $w = null, $e = null, $timeout); if (count ($read)) {/* Stream_select generally shuffles $read, so we need to compute from which socket (s ) we ' re reading.           */foreach ($read as $r) {$id = Array_search ($r, $sockets);           $data = Fread ($r, $convenient _read_block); if (strlen ($data) = = 0) {echo "Stream". $id. "Closes at". Date (' H:i:s '). ".
";              Fclose ($R);           Unset ($sockets [$id]);           } else {$result [$id] = $data;         }}} else {/* A time-out means that *all* streams has failed to receive A response. */         echo "time-out!\n";       Break    }} print_r ($result); }

3, through multi-process instead of multithreading

function Daemon ($func _name, $args, $number) {while   (true) {     $pid =pcntl_fork ();     if ($pid ==-1) {       echo "fork process fail";       Exit ();     } ElseIf ($pid) {//created child process        static $num =0;       $num + +;       if ($num >= $number) {         //when the number of processes reaches a certain number, the child process is recycled.         pcntl_wait ($status);          $num--;       }      } else{//For 0 is a child process created, then directly into the working state        if (function_exists ($func _name)) {while         (true) {           $ppid =posix_getpid ( );           Var_dump ($ppid);           Call_user_func_array ($func _name, $args);           Sleep (2);         }       } else{         echo "function is not exists";       }       Exit ();       }   } }  function Worker ($args) {    //do something  }  

The above is for you to share the three kinds of PHP implementation of multi-threaded similar method, I hope that everyone's learning has helped.

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