PHP pthreads 多线程操作

1、php采用安全线程模式进行编译 --enable-maintainer-zts 必须加上

 

configure_options= '--prefix=/usr/local/php' '--with-config-file-path=/usr/local/php/etc' '--enable-fpm' '--with-fpm-user=www' '--with-fpm-group=www' '--with-mysql=mysqlnd' '--with-mysqli=mysqlnd' '--with-pdo-mysql=mysqlnd' '--with-iconv-dir' '--with-freetype-dir=/usr/local/freetype' '--with-jpeg-dir' '--with-png-dir' '--with-zlib' '--with-libxml-dir=/usr' '--enable-xml' '--disable-rpath' '--enable-bcmath' '--enable-shmop' '--enable-sysvsem' '--enable-inline-optimization' '--with-curl' '--enable-mbregex' '--enable-mbstring' '--with-mcrypt' '--enable-ftp' '--with-gd' '--enable-gd-native-ttf' '--with-openssl' '--with-mhash' '--enable-pcntl' '--enable-sockets' '--with-xmlrpc' '--enable-zip' '--enable-soap' '--with-gettext' '--disable-fileinfo' '--enable-opcache' '--enable-maintainer-zts'

2、安装pthreads 下载路径为 https://github.com/krakjoe/pthreads php7版本采用V3，php5.3以上版本采用V2。

 

编译安装成功之后，增加 extension=pthreads.so

重启nginx和php-fpm，提示

Starting php-fpm Failed loading /usr/local/zend/ZendGuardLoader.so:  /usr/local/zend/ZendGuardLoader.so: undefined symbol: executor_globals
 done

这是由于php在安全线程模式下运行不支持ZendGuardLoader的原因，可以直接无视。

 

3、下面感受一下多线程的效率

 

url = $url;
      }

      public function run()
      {
          if(($url = $this->url))
          {
              $this->data = model_http_curl_get($url);
          }
      }
  }

  function model_thread_result_get($urls_array) 
  {
      foreach ($urls_array as $key => $value) 
      {
          $thread_array[$key] = new test_thread_run($value[url]);
          $thread_array[$key]->start();
      }

      foreach ($thread_array as $thread_array_key => $thread_array_value) 
      {
          while($thread_array[$thread_array_key]->isRunning())
          {
              usleep(10);
          }
          if($thread_array[$thread_array_key]->join())
          {
              $variable_data[$thread_array_key] = $thread_array[$thread_array_key]->data;
          }
      }
      return $variable_data;
  }

  function model_http_curl_get($url,$userAgent=) 
  {
      $userAgent = $userAgent ? $userAgent : 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)'; 
      $curl = curl_init();
      curl_setopt($curl, CURLOPT_URL, $url);
      curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
      curl_setopt($curl, CURLOPT_TIMEOUT, 5);
      curl_setopt($curl, CURLOPT_USERAGENT, $userAgent);
      $result = curl_exec($curl);
      curl_close($curl);
      return $result;
  }

  for ($i=0; $i < 100; $i++) 
  { 
      $urls_array[] = array(name => baidu, url => https://www.baidu.com/s wd=.mt_rand(10000,20000));
  }

  $t = microtime(true);
  $result = model_thread_result_get($urls_array);
  $e = microtime(true);
  echo 多线程：.($e-$t).
;

  $t = microtime(true);
  foreach ($urls_array as $key => $value) 
  {
      $result_new[$key] = model_http_curl_get($value[url]);
  }
  $e = microtime(true);
  echo For循环：.($e-$t).
;
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