php实现的Curl封装类Curl.class.php用法实例分析

本文实例讲述了php实现的Curl封装类Curl.class.php用法。分享给大家供大家参考。具体如下：

    <?php
    //curl类
    class Curl
    {
     function Curl(){
      return true;
     }
     function execute($method, $url, $fields='', $userAgent='', $httpHeaders='', $username='', $password=''){
      $ch = Curl::create();
      if(false === $ch){
       return false;
      }
      if(is_string($url) && strlen($url)){
       $ret = curl_setopt($ch, CURLOPT_URL, $url);
      }else{
       return false;
      }
      //是否显示头部信息
      curl_setopt($ch, CURLOPT_HEADER, false);
      //
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
      if($username != ''){
       curl_setopt($ch, CURLOPT_USERPWD, $username . ':' . $password);
      }
      $method = strtolower($method);
      if('post' == $method){
       curl_setopt($ch, CURLOPT_POST, true);
       if(is_array($fields)){
        $sets = array();
        foreach ($fields AS $key => $val){
         $sets[] = $key . '=' . urlencode($val);
        }
        $fields = implode('&',$sets);
       }
       curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
      }else if('put' == $method){
       curl_setopt($ch, CURLOPT_PUT, true);
      }
      //curl_setopt($ch, CURLOPT_PROGRESS, true);
      //curl_setopt($ch, CURLOPT_VERBOSE, true);
      //curl_setopt($ch, CURLOPT_MUTE, false);
      curl_setopt($ch, CURLOPT_TIMEOUT, 10);//设置curl超时秒数
      if(strlen($userAgent)){
       curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
      }
      if(is_array($httpHeaders)){
       curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeaders);
      }
      $ret = curl_exec($ch);
      if(curl_errno($ch)){
       curl_close($ch);
       return array(curl_error($ch), curl_errno($ch));
      }else{
       curl_close($ch);
       if(!is_string($ret) || !strlen($ret)){
        return false;
       }
       return $ret;
      }
     }
     function post($url, $fields, $userAgent = '', $httpHeaders = '', $username = '', $password = ''){
      $ret = Curl::execute('POST', $url, $fields, $userAgent, $httpHeaders, $username, $password);
      if(false === $ret){
       return false;
      }
      if(is_array($ret)){
       return false;
      }
      return $ret;
     }
     function get($url, $userAgent = '', $httpHeaders = '', $username = '', $password = ''){
      $ret = Curl::execute('GET', $url, '', $userAgent, $httpHeaders, $username, $password);
      if(false === $ret){
       return false;
      }
      if(is_array($ret)){
       return false;
      }
      return $ret;
     }
     function create(){
      $ch = null;
      if(!function_exists('curl_init')){
       return false;
      }
      $ch = curl_init();
      if(!is_resource($ch)){
       return false;
      }
      return $ch;
     }
    }
    ?>

GET用法：

    $curl = new Curl();
    $curl->get('http://www.XXX.com/');

POST用法：

    $curl = new Curl();
    $curl->get('http://www.XXX.com/', 'p=1&time;=0');

希望本文所述对大家的php程序设计有所帮助。