php中GET和POST请求发送几种方法总结

在php中GET和POST请求发送有很多方法，一直都没有仔细的去总结过，今天看到一站长分享的GET和POST请求发送几种方法下面整理一下。

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无论是畅言还是多说，我都需要从远程抓取文章的评论数，然后存入本地数据库。对于多说，请求的格式如下：

代码如下	复制代码
// 获取评论次数,参数是文章ID function getCommCount($postid) {  $jsondata = file_get_contents("http://api.duoshuo.com/threads/counts.json?short_name=i94web&threads=$postid");  // 设置true返回数组,不设置或者是false则返回对象  $resjson= json_decode($jsondata,true);  return $resjson['response'][$postid]['comments']; }

对于远程请求，有很多种方法。今天，LZ就搜罗了六种，供大家参考。

1、用file_get_contents 以get方式获取内容：

代码如下	复制代码
$url='http://www.111cn.net/'; $html = file_get_contents($url); echo $html; ?>

 

2、用fopen打开url，用get方式获取

代码如下	复制代码
$fp = fopen($url, 'r'); stream_get_meta_data($fp); while(!feof($fp)) { $result .= fgets($fp, 1024); } echo "url body: $result"; fclose($fp);

  

3、用file_get_contents 以post方式获取内容：

代码如下	复制代码
$data = array ('foo' => 'bar'); $data = http_build_query($data);   $opts = array ( 'http' => array ( 'method' => 'POST', 'header'=> "Content-type: application/x-www-form-urlencodedrn" . 'Content-Length: ' . strlen($data) . 'rn', 'content' => $data ) );   $context = stream_context_create($opts); $html = file_get_contents('http://localhost/e/admin/test.html', false, $context);   echo $html;

 

  4、用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启

代码如下

复制代码

function get_url ($url,$cookie=false) { $url = parse_url($url); $query = $url[path].'?'.$url[query]; echo 'Query:'.$query; $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30); if (!$fp) { return false; } else { $request = 'GET $query HTTP/1.1rn'; $request .= 'Host: $url[host]rn'; $request .= 'Connection: Closern'; if($cookie) $request.='Cookie:  $cookien'; $request.='rn'; fwrite($fp,$request); while(!@feof($fp)) { $result .= @fgets($fp, 1024); } fclose($fp); return $result; } } //获取url的html部分，去掉header function GetUrlHTML($url,$cookie=false) { $rowdata = get_url($url,$cookie); if($rowdata) { $body= stristr($rowdata,'rnrn'); $body=substr($body,4,strlen($body)); return $body; }   return false; }

  5、用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

代码如下

复制代码

function HTTP_Post($URL,$data,$cookie, $referrer='') {   // parsing the given URL $URL_Info=parse_url($URL);   // Building referrer if($referrer=='') // if not given use this script as referrer $referrer='111';   // making string from $data foreach($data as $key=>$value) $values[]='$key='.urlencode($value); $data_string=implode('&',$values);   // Find out which port is needed – if not given use standard (=80) if(!isset($URL_Info['port'])) $URL_Info['port']=80;   // building POST-request: $request.="POST ".$URL_Info['path']." HTTP/1.1n"; $request.="Host: ".$URL_Info['host']."n"; $request.="Referer: $referern"; $request.="Content-type: application/x-www-form-urlencodedn"; $request.='Content-length: '.strlen($data_string)."n"; $request.='Connection: closen';   $request.='Cookie:  $cookien';   $request.='n'; $request.=$data_string.'n';   $fp = fsockopen($URL_Info['host'],$URL_Info['port']); fputs($fp, $request); while(!feof($fp)) { $result .= fgets($fp, 1024); } fclose($fp);   return $result; }

 

 6、使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展

代码如下	复制代码
$ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, ‘http://www.111cn.net/'); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch);   echo $file_contents;