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。对于多说，请求的格式如下：// 获取评论次数,参数是文章IDfunction 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：<?php$url=’http://www.ido321.com/’;$html = file_get_contents($url);echo $html;?>2、用fopen打开url，用get方式获取$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 $result;}}//获取url的html部分，去掉headerfunction GetUrlHTML($url,$cookie=false){$rowdata = get_url($url,$cookie);if($rowdata){$body= stristr($rowdata,’rnrn’);$body=substr($body,4,strlen($body));return $body;}return false;} 5、用fsockopen函数打开url，以POST方式获取完整的数据，包括header和bodyfunction HTTP_Post($URL,$data,$cookie, $referrer=’’){// parsing the given URL$URL_Info=parse_url($URL);// Building referrerif($referrer==’’) // if not given use this script as referrer$referrer=’111’;// making string from $dataforeach($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 $result;} 6、使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展$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;