體驗一下多線程和普通的程序的區別

測試看出來用多線程去跑和普通的跑大概差距時間是八倍

<?php  

      class test_thread_run extends Thread          {             public $url;             public $data;                    public function __construct($url)             {                 $this->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" => "http://www.baidu.com/s?wd=".mt_rand(10000,20000));         }                $t = microtime(true);         $result = model_thread_result_get($urls_array);         $e = microtime(true);         echo "多線程：".($e-$t)."\n";                $t = microtime(true);         foreach ($urls_array as $key => $value)          {             $result_new[$key] = model_http_curl_get($value["url"]);         }         $e = microtime(true);         echo "For循環：".($e-$t)."\n";       ?>