php httpRequest(php实现httpRequest)

PHPABC PHP开发 847 次浏览 , 没有评论

 想从学校图书馆的网站上抓取数据处理之后在返回给浏览器,试了不少方法。首先试了http_request(),但是这个学院pecl_http支持,后来又试了网上流传甚广的class HttpRequest,可能是我不会使用,也失败了。后来看到了函数httpRequest($url, $post='', $method='GET', $limit=0, $returnHeader=FALSE, $cookie='', $bysocket=FALSE, $ip='', $timeout=15, $block=TRUE),用它成功了,因此贴出来分享一下。函数代码如下:

<?php  /**  * Respose A Http Request  *  * @param string $url  * @param array $post  * @param string $method  * @param bool $returnHeader  * @param string $cookie  * @param bool $bysocket  * @param string $ip  * @param integer $timeout  * @param bool $block  * @return string Response  */  function httpRequest($url,$post='',$method='GET',$limit=0,$returnHeader=FALSE,$cookie='',
$bysocket=FALSE,$ip='',$timeout=15,$block=TRUE) {    $return = '';    $matches = parse_url($url);    !isset($matches['host']) && $matches['host'] = '';    !isset($matches['path']) && $matches['path'] = '';    !isset($matches['query']) && $matches['query'] = '';    !isset($matches['port']) && $matches['port'] = '';    $host = $matches['host'];    $path = $matches['path'] ? $matches['path'].($matches['query'] ? '?'.$matches['query'] : '') : '/';    $port = !empty($matches['port']) ? $matches['port'] : 80;    if(strtolower($method) == 'post') {     $post = (is_array($post) and !empty($post)) ? http_build_query($post) : $post;     $out = "POST $path HTTP/1.0/r/n";     $out .= "Accept: */*/r/n";     //$out .= "Referer: $boardurl/r/n";     $out .= "Accept-Language: zh-cn/r/n";     $out .= "Content-Type: application/x-www-form-urlencoded/r/n";     $out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]/r/n";     $out .= "Host: $host/r/n";     $out .= 'Content-Length: '.strlen($post)."/r/n";     $out .= "Connection: Close/r/n";     $out .= "Cache-Control: no-cache/r/n";     $out .= "Cookie: $cookie/r/n/r/n";     $out .= $post;    } else {     $out = "GET $path HTTP/1.0/r/n";     $out .= "Accept: */*/r/n";     //$out .= "Referer: $boardurl/r/n";     $out .= "Accept-Language: zh-cn/r/n";     $out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]/r/n";     $out .= "Host: $host/r/n";     $out .= "Connection: Close/r/n";     $out .= "Cookie: $cookie/r/n/r/n";    }    $fp = fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);    if(!$fp) return ''; else {     $header = $content = '';     stream_set_blocking($fp, $block);     stream_set_timeout($fp, $timeout);     fwrite($fp, $out);     $status = stream_get_meta_data($fp);     if(!$status['timed_out']) {//未超时      while (!feof($fp)) {       $header .= $h = fgets($fp);       if($h && ($h == "/r/n" ||  $h == "/n")) break;      }      $stop = false;      while(!feof($fp) && !$stop) {       $data = fread($fp, ($limit == 0 || $limit > 8192 ? 8192 : $limit));       $content .= $data;       if($limit) {        $limit -= strlen($data);        $stop = $limit <= 0;       }      }     }     fclose($fp);     return $returnHeader ? array($header,$content) : $content;    } } ?>

调用也很简单的。简单的例子:

echo httpRequest('http://www.baidu.com');  


发表评论

电子邮件地址不会被公开。 必填项已用*标注

此站点使用Akismet来减少垃圾评论。了解我们如何处理您的评论数据

Go