php实现httpRequest的方法
php实现httpRequest的方法
发布时间:2016-12-29 来源:查字典编辑
摘要: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,...

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:

复制代码 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/1.0rn";

$out .= "Accept: */*rn";

//$out .= "Referer: $boardurlrn";

$out .= "Accept-Language: zh-cnrn";

$out .= "Content-Type: application/x-www-form-urlencodedrn";

$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]rn";

$out .= "Host: $hostrn";

$out .= 'Content-Length: '.strlen($post)."rn";

$out .= "Connection: Closern";

$out .= "Cache-Control: no-cachern";

$out .= "Cookie: $cookiernrn";

$out .= $post;

} else {

$out = "GET $path HTTP/1.0rn";

$out .= "Accept: */*rn";

//$out .= "Referer: $boardurlrn";

$out .= "Accept-Language: zh-cnrn";

$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]rn";

$out .= "Host: $hostrn";

$out .= "Connection: Closern";

$out .= "Cookie: $cookiernrn";

}

$fp = fsockopen(($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 == "rn" || $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:

复制代码 代码如下:echo httpRequest('http://www.baidu.com');

希望本文所述对大家的php程序设计有所帮助。

推荐文章
猜你喜欢
附近的人在看
推荐阅读
拓展阅读
相关阅读
网友关注
最新php教程学习
热门php教程学习
编程开发子分类