php多線程有哪些實(shí)現(xiàn)方法

小編給大家分享一下php多線程有哪些實(shí)現(xiàn)方法，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！

1、curl_multi方法

當(dāng)需要多線程的時(shí)候，可以用curl_multi一次性請(qǐng)求多個(gè)操作來完成，但curl走的是網(wǎng)絡(luò)通信，效率與可靠性就比較差了的。

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 框架格式 
 
    foreach ($data as $k => $v) {  
 
      if ($k % 2 == 0) { //偶數(shù)發(fā)一個(gè)網(wǎng)址 
 
        $send_data[$k]['url'] = ''; 
 
        $send_data[$k]['body'] = $v['waybill_id']; 
 
      } else { //奇數(shù)發(fā)送另外一個(gè)網(wǎng)址 
        $send_data[$k]['url'] = 'http://www.abc.com'; 
 
        $send_data[$k]['body']=array($v['order_id'] => array('extra' => 16)); 
      } 
    }  
  }

2、通過stream_socket_client 方式

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['waybill_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 . ":80", $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."; 
      }  
    } 
 }

3、通過多進(jìn)程代替多線程

function daemon($func_name,$args,$number){ 
  while(true){ 
    $pid=pcntl_fork(); 
    if($pid==-1){ 
      echo "fork process fail"; 
      exit(); 
    }elseif($pid){//創(chuàng)建的子進(jìn)程 
 
      static $num=0; 
      $num++; 
      if($num>=$number){ 
        //當(dāng)進(jìn)程數(shù)量達(dá)到一定數(shù)量時(shí)候，就對(duì)子進(jìn)程進(jìn)行回收。 
        pcntl_wait($status); 
 
        $num--; 
      }  
    }else{ //為0 則代表是子進(jìn)程創(chuàng)建的，則直接進(jìn)入工作狀態(tài) 
 
      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 
 
}  
daemon('worker',array(1),2);

以上是php多線程有哪些實(shí)現(xiàn)方法的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對(duì)大家有所幫助，如果還想學(xué)習(xí)更多知識(shí)，歡迎關(guān)注億速云行業(yè)資訊頻道！