PHP獲取網頁內容的7種方法
阿新 • • 發佈:2020-09-08
方法1: 用
file_get_contents
以get方式獲取內容
<?php $url='http://www.domain.com/?para=123'; $html= file_get_contents($url); echo$html; ?>
方法2:用
file_get_contents
函式,以post方式獲取url
<?php $url= 'http://www.domain.com/test.php?id=123'; $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 ) ); $ctx= stream_context_create($opts); $html= @file_get_contents($url,'',$ctx); ?>
如果需要再傳遞cookie資料,則把
'header'
=>
"Content-type: application/x-www-form-urlencoded\r\n"
.
"Content-Length: "
.
strlen
(
$data
) .
"\r\n"
,
修改為
'header'
=>
"Content-type: application/x-www-form-urlencoded\r\n"
.
"Content-Length: "
.
strlen
(
$data
) .
"\r\n"
.
"cookie:cookie1=c1;cookie2=c2\r\n"
;
即可
方法3: 用
fopen
開啟url, 以get方式獲取內容
<?php $fp= fopen($url,'r'); $header= stream_get_meta_data($fp);//獲取報頭資訊 while(!feof($fp)) { $result.= fgets($fp, 1024); } echo"url header: {$header} <br>": echo"url body: $result"; fclose($fp); ?>
方法4: 用
fopen
開啟url, 以post方式獲取內容
<?php $data= array('foo2'=> 'bar2','foo3'=>'bar3'); $data= http_build_query($data); $opts= array( 'http'=> array( 'method'=> 'POST', 'header'=>"Content-type: application/x-www-form-urlencoded\r\nCookie:cook1=c3;cook2=c4\r\n" . "Content-Length: " . strlen($data) . "\r\n", 'content'=> $data ) ); $context= stream_context_create($opts); $html= fopen('http://www.test.com/zzzz.php?id=i3&id2=i4','rb',false, $context); $w=fread($html,1024); echo$w; ?>
方法5:用
fsockopen
函式開啟url,以get方式獲取完整的資料,包括header和body
<?php functionget_url ($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) { returnfalse; }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,$request); while(!@feof($fp)) { $result.= @fgets($fp, 1024); } fclose($fp); return$result; } } //獲取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; } ?>
方法6:用
fsockopen
函式開啟url,以POST方式獲取完整的資料,包括header和body
<?php 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; } ?>
方法7:使用curl庫,使用curl庫之前,可能需要檢視一下php.ini是否已經打開了curl擴充套件
<?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; ?>