PHP：6種GET和POST請求發送方法

在i94web部落格中，我試過了暢言和多說兩種社會化評論框，後來還是拋棄了暢言，不安全。

無論是暢言還是多說，我都需要從遠程抓取文章的評論數，然後存入本機資料庫。對於多說，請求的格式如下：

// 擷取評論次數,參數是文章IDfunction getCommCount($postid){    $jsondata = file_get_contents("http://api.duoshuo.com/threads/counts.json?short_name=i94web&threads=$postid");    // 設定true返回數組,不設定或者是false則返回對象    $resjson= json_decode($jsondata,true);    return $resjson['response'][$postid]['comments'];}

對於遠程請求，有很多種方法。今天，LZ就搜羅了六種，供大家參考。

1、用file_get_contents 以get方式擷取內容：

'http://www.ido321.com/';$html = file_get_contents($url);echo $html;?>

2、用fopen開啟url，用get方式擷取

$fp = fopen($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方式擷取內容：

$data = array ('foo' => 'bar');$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函數開啟url，以get方式擷取完整的資料，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 選項開啟

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 $result;}}//擷取url的html部分，去掉headerfunction GetUrlHTML($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函數開啟url，以POST方式擷取完整的資料，包括header和body

function 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庫，使用curl庫之前，可能需要查看一下php.ini是否已經開啟了curl擴充

$ch = curl_init();$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;

原文首發：http://www.ido321.com/1297.html
下一篇：CSS 3的display：盒類型詳解

以上就介紹了PHP：6種GET和POST請求發送方法，包括了方面的內容，希望對PHP教程有興趣的朋友有所協助。

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