php发送get、post请求的几种方法

blog.csdn.net/haha00217/article/details/7969504

方法1: 用file_get_contents 以get方式获取内容

<?php

$url='http://www.domain.com/';

$html = file_get_contents($url);

echo $html;

?>

方法2: 用fopen打开url, 以get方式获取内容

<?php

$fp = fopen($url, 'r');

//返回请求流信息（数组：请求状态，阻塞，返回值是否为空，返回值http头等）

stream_get_meta_data($fp);

while(!feof($fp)) {

$result .= fgets($fp, 1024);

}

echo "url body: $result";

fclose($fp);

?>

方法3：用file_get_contents函数,以post方式获取url

<?php

$data = array ('foo' => 'bar');

//生成url-encode后的请求字符串，将数组转换为字符串

$data = http_build_query($data);

$opts = array (

'http' => array (

'method' => 'POST',

'header'=> "Content-type: application/x-www-form-urlencoded\r\n" .

"Content-Length: " . strlen($data) . "\r\n",

'content' => $data

)

);

//生成请求的句柄文件

$context = stream_context_create($opts);

$html = file_get_contents('http://localhost/e/admin/test.html', false, $context);

echo $html;

?>

方法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

<?php

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/1.1\r\n";

$request .= "Host: $url[host]\r\n";

$request .= "Connection: Close\r\n";

if($cookie) $request.="Cookie: $cookie\n";

$request.="\r\n";

fwrite($fp,$request);

while()) {

$result .= @fgets($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,"\r\n\r\n");

$body=substr($body,4,strlen($body));

return $body;

}

return false;

}

?>

方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body

<?php

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/1.1\n";

$request.="Host: ".$URL_Info["host"]."\n";

$request.="Referer: $referer\n";

$request.="Content-type: application/x-www-form-urlencoded\n";

$request.="Content-length: ".strlen($data_string)."\n";

$request.="Connection: close\n";

$request.="Cookie: $cookie\n";

$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;

}

?>

方法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

<?php

$ch = curl_init();

$timeout = 5;

curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/');

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);

$file_contents = curl_exec($ch);

curl_close($ch);

echo $file_contents;

?>