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如何学习PHP:6种GET和POST请求发送方法

作者:课课家教育     来源: http://www.kokojia.com点击数:798发布时间: 2015-12-11 10:48:53

标签: webdivCSS

Web开发

  课课家今天跟大家分享的是如何学习PHP:6种GET和POST请求发送方法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。

  AD:

如何学习PHP:6种GET和POST请求发送方法_web_div_CSS

  在i94web博客中,我试过了畅言和多说两种社会化评论框,后来还是抛弃了畅言,不安全。

  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:

  // 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:

  2、用fopen打开url,用get方式获取

  $fp = fopen($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:

  $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

  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

  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; }

  课课家提醒大家学习PHP:GET和POST请求发送方法中,这第六种方法使用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

  $ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, ‘http://www.ido321.com/'); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); echo $file_contents;

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