今天我们向大家重点讲解的是PHP获取远程URL的具体方法,我们通过六种例子,具体总结了它获取内容的方法,让大家对这几种方法有一个深刻的了解。
#t#示例代码1: 用file_get_contents 以get方式实现PHP获取远程URL
- <?php
- $url='http://www.baidu.com/';
- $html=file_get_contents($url);
- //print_r($http_response_header);
- ec($html);
- printhr();
- printarr($http_response_header);
- printhr();
- ?>
示例代码2: 用fopen打开url, 以get方式获取内容
- <?
- $fp=fopen($url,'r');
- printarr(stream_get_meta_data($fp));
- printhr();
- while(!feof($fp)){
- $result.=fgets($fp,1024);
- }
- echo"url body: $result";
- printhr();
- fclose($fp);
- ?>
示例代码3:用file_get_contents函数,以post方式进行PHP获取远程URL
- <?php
- $data=array('foo'=>'bar');
- $data=http_build_query($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
- ),
- );
- $context=stream_context_create($opts);
- $html=file_get_contents('http://localhost/e/admin/test.html',false,$context);
- echo$html;
- ?>
示例代码4:用fsockopen函数打开url,以get方式获取完整的数据,包括header和body
- <?
- functionget_url($url,$cookie=false){
- $url=parse_url($url);
- $query=$url[path]."?".$url[query];
- ec("Query:".$query);
- $fp=fsockopen($url[host],$url[port]?$url[port]:80,$errno,$errstr,30);
- if(!$fp){
- returnfalse;
- }else{
- $request="GET$queryHTTP/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,$request);
- while(!@feof($fp)){
- $result.=@fgets($fp,1024);
- }
- fclose($fp);
- return$result;
- }
- }
- //获取url的html部分,去掉header
- functionGetUrlHTML($url,$cookie=false){
- $rowdata=get_url($url,$cookie);
- if($rowdata)
- {
- $body=stristr($rowdata,"\r\n\r\n");
- $body=substr($body,4,strlen($body));
- return$body;
- }
- returnfalse;
- }
- ?>
PHP获取远程URL示例代码5:用fsockopen函数打开url,以POST方式获取完整的数据,包括header和body
- <?
- functionHTTP_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 $data
- foreach($dataas$key=>$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;
- }
- printhr();
- ?>
PHP获取远程URL示例代码6:使用curl库,使用curl库之前,你可能需要查看一下php.ini,查看是否已经打开了curl扩展
- <?
- $ch = curl_init();
- $timeout = 5;
- curl_setopt ($ch, CURLOPT_URL, 'http://www.baidu.com/');
- curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
- curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
- $file_contents = curl_exec($ch);
- curl_close($ch);
- echo $file_contents;
- ?>
文章来源:http://hi.baidu.com/lqkailin/blog/item/f2dc2d1a212e670d34fa416f.html