yxhxj2006

PHP利用Curl、socket、file_get_contents POST数据

<?php 
/** 
* Socket版本 
* 使用方法： 
* $post_string = "app=socket&version=beta"; 
* request_by_socket('facebook.cn','/restServer.php',$post_string); 
*/ 
function request_by_socket($remote_server,$remote_path,$post_string,$port = 80,$timeout = 30){ 
    $socket = fsockopen($remote_server,$port,$errno,$errstr,$timeout); 
     if (!$socket) die("$errstr($errno)"); 
    
    fwrite($socket,"POST $remote_path HTTP/1.0\r\n"); 
    fwrite($socket,"User-Agent: Socket Example\r\n"); 
    fwrite($socket,"HOST: $remote_server\r\n"); 
    fwrite($socket,"Content-type: application/x-www-form-urlencoded\r\n"); 
    fwrite($socket,"Content-length: ".strlen($post_string)+8."\r\n"); 
    fwrite($socket,"Accept:*/*\r\n"); 
    fwrite($socket,"\r\n"); 
    fwrite($socket,"mypost=$post_string\r\n"); 
    fwrite($socket,"\r\n"); 
    
    $header = ""; 
     while ($str = trim(fgets($socket,4096))) { 
        $header.=$str; 
     } 
    
    $data = ""; 
     while (!feof($socket)) { 
        $data .= fgets($socket,4096); 
     } 
    
     return $data; 
}

/** 
* Curl版本 
* 使用方法： 
* $post_string = "app=request&version=beta"; 
* request_by_curl('http://facebook.cn/restServer.php',$post_string); 
*/ 
function request_by_curl($remote_server,$post_string){ 
    $ch = curl_init(); 
    curl_setopt($ch,CURLOPT_URL,$remote_server); 
    curl_setopt($ch,CURLOPT_POSTFIELDS,'mypost='.$post_string); 
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,true); 
    curl_setopt($ch,CURLOPT_USERAGENT,"Jimmy's CURL Example beta"); 
    $data = curl_exec($ch); 
    curl_close($ch); 
     return $data; 
} 
/** 
* 其它版本 
* 使用方法： 
* $post_string = "app=request&version=beta"; 
* request_by_other('http://facebook.cn/restServer.php',$post_string); 
*/ 
function request_by_other($remote_server,$post_string){ 
    $context = array( 
        'http'=>array( 
            'method'=>'POST', 
            'header'=>'Content-type: application/x-www-form-urlencoded'."\r\n". 
                      'User-Agent : Jimmy\'s POST Example beta'."\r\n". 
                      'Content-length: '.strlen($post_string)+8, 
            'content'=>'mypost='.$post_string) 
         ); 
    $stream_context = stream_context_create($context); 
    $data = file_get_contents($remote_server,FALSE,$stream_context); 
     return $data; 
}

function curl_file_get_contents($durl) {     

    }

curl效率及稳定原来可以远远超越file_get_contents

最近需要获取别人网站上的音乐数据。用了file_get_contents函数，但是总是会遇到获取失败的问题，尽管按照手册中的 例子设置了超时，可多数时候不会奏效：

2.31319094

0.68719101

建议对网络数据抓取稳定性要求比较高的朋友使用上面的 curl_file_get_contents函数，不但稳定速度快，还能假冒浏览器欺骗目标地址哦！

看到的其他文章收藏于此===============================

php fsockopen

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');
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');
$data = http_build_query($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;
?>

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

<?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;
?>

posted on 2014-12-31 19:05 奋斗成就男人 阅读(310) 评论(0)  编辑  收藏