转自：http://blog.csdn.net/haha00217/article/details/7969504
方法1: 用file_get_contents 以get方式获取内容
1 <?php 2 $url='http://www.domain.com/'; 3 $html = file_get_contents($url); 4 echo $html; 5 ?>
方法2: 用fopen打开url, 以get方式获取内容
1 <?php 2 $fp = fopen($url, 'r'); 3 //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） 4 stream_get_meta_data($fp); 5 while(!feof($fp)) { 6 $result .= fgets($fp, 1024); 7 } 8 echo "url body: $result"; 9 fclose($fp); 10 ?>
方法3：用file_get_contents函数,以post方式获取url
1 <?php 2 $data = array ('foo' => 'bar'); 3 4 //生成url-encode后的请求字符串，将数组转换为字符串 5 $data = http_build_query($data); 6 $opts = array ( 7 'http' => array ( 8 'method' => 'POST', 9 'header'=> "Content-type: application/x-www-form-urlencoded\r\n" . 10 "Content-Length: " . strlen($data) . "\r\n", 11 'content' => $data 12 ) 13 ); 14 //生成请求的句柄文件 15 $context = stream_context_create($opts); 16 $html = file_get_contents('http://localhost/e/admin/test.html', false, $context); 17 echo $html; 18 ?>
方法4：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body,fsockopen需要 PHP.ini 中 allow_url_fopen 选项开启
1 <?php 2 function get_url ($url,$cookie=false) 3 { 4 $url = parse_url($url); 5 $query = $url[path]."?".$url[query]; 6 echo "Query:".$query; 7 $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30); 8 if (!$fp) { 9 return false; 10 } else { 11 $request = "GET $query HTTP/1.1\r\n"; 12 $request .= "Host: $url[host]\r\n"; 13 $request .= "Connection: Close\r\n"; 14 if($cookie) $request.="Cookie: $cookie\n"; 15 $request.="\r\n"; 16 fwrite($fp,$request); 17 while()) { 18 $result .= @fgets($fp, 1024); 19 } 20 fclose($fp); 21 return $result; 22 } 23 } 24 //获取url的html部分，去掉header 25 function GetUrlHTML($url,$cookie=false) 26 { 27 $rowdata = get_url($url,$cookie); 28 if($rowdata) 29 { 30 $body= stristr($rowdata,"\r\n\r\n"); 31 $body=substr($body,4,strlen($body)); 32 return $body; 33 } 34 return false; 35 } 36 ?>
方法5：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body
1 <?php 2 function HTTP_Post($URL,$data,$cookie, $referrer="") 3 { 4 // parsing the given URL 5 $URL_Info=parse_url($URL); 6 // Building referrer 7 if($referrer=="") // if not given use this script as referrer 8 $referrer="111"; 9 // making string from $data 10 foreach($data as $key=>$value) 11 $values[]="$key=".urlencode($value); 12 $data_string=implode("&",$values); 13 // Find out which port is needed - if not given use standard (=80) 14 if(!isset($URL_Info["port"])) 15 $URL_Info["port"]=80; 16 // building POST-request: 17 $request.="POST ".$URL_Info["path"]." HTTP/1.1\n"; 18 $request.="Host: ".$URL_Info["host"]."\n"; 19 $request.="Referer: $referer\n"; 20 $request.="Content-type: application/x-www-form-urlencoded\n"; 21 $request.="Content-length: ".strlen($data_string)."\n"; 22 $request.="Connection: close\n"; 23 $request.="Cookie: $cookie\n"; 24 $request.="\n"; 25 $request.=$data_string."\n"; 26 $fp = fsockopen($URL_Info["host"],$URL_Info["port"]); 27 fputs($fp, $request); 28 while(!feof($fp)) { 29 $result .= fgets($fp, 1024); 30 } 31 fclose($fp); 32 return $result; 33 } 34 ?> 35 36 37
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
1 <?php 2 $ch = curl_init(); 3 $timeout = 5; 4 curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/'); 5 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 6 curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); 7 $file_contents = curl_exec($ch); 8 curl_close($ch); 9 echo $file_contents; 10 ?>