php实现httpRequest的方法
发布:smiling 来源: PHP粉丝网 添加日期:2021-05-16 12:13:59 浏览: 评论:0
这篇文章主要介绍了php实现httpRequest的方法,涉及php操作http的技巧,具有一定参考借鉴价值,需要的朋友可以参考下。
本文实例讲述了php实现httpRequest的方法,分享给大家供大家参考,具体如下:
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'] : '') : '/';
- $port = !emptyempty($matches['port']) ? $matches['port'] : 80;
- if(strtolower($method) == 'post') {
- $post = (is_array($post) and !emptyempty($post)) ? http_build_query($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.phpfensi.com');
希望本文所述对大家的php程序设计有所帮助。
Tags: httpRequest
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