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【PHP】 http请求处理类
作者:qita.in / 发布于2012/10/22/ 506
http请求处理类
<div>/**</div>
<div>* http请求处理类（基于CURL进行封装）</div>
<div>*</div>
<div>* @author Xiwei Ye <yexiwei@gmail.com></div>
<div>* @version    $Id$</div>
<div>*/</div>
<div>class cls_http_request</div>
<div>{</div>
<div> </div>
<div>  /**</div>
<div>  * get方式请求（curl）</div>
<div>  *</div>
<div>  * @param string $url    请求的url</div>
<div>  * @param integer $timeout  超时时间（s）</div>
<div>  * @return string(请求成功) | false(请求失败)</div>
<div>  */</div>
<div>  public static function curl_get($url, $timeout = 1)</div>
<div>  {</div>
<div>    $ch = curl_init();</div>
<div>    curl_setopt($ch, CURLOPT_URL, $url);</div>
<div>    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);</div>
<div>    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);</div>
<div>    $result = curl_exec($ch);</div>
<div>    curl_close($ch);</div>
<div>    if (is_string($result) && strlen($result))</div>
<div>    {</div>
<div>      return $result;</div>
<div>    }
<div>    else</div>
<div>    {</div>
<div>      return false;</div>
<div>    }
<div>  }
<div> </div>
<div>  /**</div>
<div>  * post方式请求</div>
<div>  *</div>
<div>  * @param string $url    请求的url</div>
<div>  * @param array $data    请求的参数数组（关联数组）</div>
<div>  * @param integer $timeout  超时时间（s）</div>
<div>  * @return string(请求成功) | false(请求失败)</div>
<div>  */</div>
<div>  public static function curl_post($url, $data, $timeout = 2)</div>
<div>  {</div>
<div>    $ch = curl_init();</div>
<div>    curl_setopt($ch, CURLOPT_URL, $url);</div>
<div>    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);</div>
<div>    curl_setopt($ch, CURLOPT_POST, 1);</div>
<div>    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);</div>
<div>    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);</div>
<div>    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);</div>
<div>    $result = curl_exec($ch);</div>
<div>    curl_close($ch);</div>
<div>    if (is_string($result) && strlen($result))</div>
<div>    {</div>
<div>      return $result;</div>
<div>    }
<div>    else</div>
<div>    {</div>
<div>      return false;</div>
<div>    }
<div>  }
<div> </div>
<div>  /**</div>
<div>  * 多个url并行请求</div>
<div>  *</div>
<div>  * @param array $urls  url数组</div>
<div>  * @param integer $timeout  超时时间(s)</div>
<div>  * @return array $res  返回结果</div>
<div>  */</div>
<div>  public static function curl_get_urls($urls, $timeout = 1)</div>
<div>  {</div>
<div>    $mh=curl_multi_init();</div>
<div>    $chs=array();</div>
<div>    foreach($urls as $url)</div>
<div>    {</div>
<div>      $ch=curl_init();</div>
<div>      curl_setopt($ch,CURLOPT_URL,$url);</div>
<div>      curl_setopt($ch,CURLOPT_HEADER,false);</div>
<div>      curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);</div>
<div>      curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,1);</div>
<div>      curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);</div>
<div>      curl_multi_add_handle($mh,$ch);</div>
<div>      $chs[]=$ch;</div>
<div>    }
<div>    $active=null;</div>
<div>    do {</div>
<div>      $mrc=curl_multi_exec($mh,$active);</div>
<div>    }while($mrc == CURLM_CALL_MULTI_PERFORM);</div>
<div>    while($active && $mrc == CURLM_OK)</div>
<div>    {</div>
<div>      if(curl_multi_select($mh) != -1)</div>
<div>      {</div>
<div>        do{</div>
<div>          $mrc=curl_multi_exec($mh,$active);</div>
<div>        }while($mrc == CURLM_CALL_MULTI_PERFORM);</div>
<div>      }
<div>    }
<div>    $res=array();</div>
<div>    foreach($chs as $ch)</div>
<div>    {</div>
<div>      $res[]=curl_multi_getcontent($ch);</div>
<div>      curl_multi_remove_handle($mh,$ch);</div>
<div>    }
<div>    curl_multi_close($mh);</div>
<div>    return $res;</div>
<div>  }
<div>}
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