PHP代理访问网络资源

第一种：使用DOMDocument

 <? PHP

$doc = new \DOMDocument();

$opts = array(

    'http' => array(

        'user_agent' => 'PHP libxml agent',

        'timeout' => 5, 

'proxy' => 'tcp://10.41.70.16:80', 

'request_fulluri' => True

        )

        );

$context = stream_context_create($opts);

libxml_set_streams_context($context);

$result = $doc->load($url); 

?>

第二种：使用file_get_contents的代理方法

<?php 

$url = "http://www.jb51.net/"; 

$ctx = stream_context_create(array( 

'http' => array('timeout' => 5, 

'proxy' => 'tcp://60.175.203.243:8080', 

'request_fulluri' => True,) 

) 

); 

$result = file_get_contents($url, False, $ctx); 

echo $result; 

?> 

第三种：curl 的方式使用代理的方法

function postPage($url) 

{ 

$response = ""; 

$rd=rand(1,4); 

$proxy='http://221.214.27.253:808'; 

if($rd==2) $proxy='http://222.77.14.56:8088'; 

if($rd==3) $proxy='http://202.98.123.126:8080'; 

if($rd==4) $proxy='http://60.14.97.38:8080'; 

if($url != "") { 

$ch = curl_init($url); 

curl_setopt($ch, CURLOPT_HEADER, 0); 

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 

curl_setopt($ch, CURLOPT_PROXY, $proxy); 

$response = curl_exec($ch); 

if(curl_errno($ch)) $response = ""; 

curl_close($ch); 

} 

return $response; 

}