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。
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
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;