PHP：6种GET和POST请求发送方法_PHP教程

PHP：6种GET和POST请求发送方法

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：

$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; 
} 

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; 

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