PHP解析土豆FLV真实地址(转)

服务器必须支持CURL或fsockopen
这个解析方法将在PHP Melody 1.5.4中文版中使用到
经过一晚上的测试，测试，再测试，发现个别解析到的地址用不了。严格的话就要循环检查一下，但是这样太费系统资源和时间了，程序运行起来会很慢，解决方法在研究中。。。。。。
 
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<?php 

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function curl_get_contents($url) 

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{ 

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    if(!function_exists(‘curl_init’)) { 

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        return false; 

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    } else { 

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        $user_agent = $_SERVER[‘HTTP_USER_AGENT’]; 

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        $ch = curl_init(); 

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        curl_setopt($ch, CURLOPT_URL, $url); 

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        curl_setopt($ch, CURLOPT_HEADER, 0); 

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        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 

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        curl_setopt($ch, CURLOPT_USERAGENT, $user_agent); 

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        $content = curl_exec($ch); 

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        $errormsg = curl_error($ch); 

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        curl_close($ch); 

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        if($errormsg != ”) { 

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            echo $errormsg; 

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            return false; 

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        } 

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    return $content; 

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    } 

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} 

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function fsock_get_contents($url) 

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{ 

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    if(!function_exists(‘fsockopen’)) { 

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        return false; 

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    } else { 

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        $user_agent = $_SERVER[‘HTTP_USER_AGENT’]; 

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        $url = eregi_replace(‘^http://’, ”, $url); 

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        $temp = explode(‘/’, $url); 

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        $host = array_shift($temp); 

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        $path = ‘/’.implode(‘/’, $temp); 

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        $temp = explode(‘:’, $host); 

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        $host = $temp[0]; 

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        $port = isset($temp[1]) ? $temp[1] : 80; 

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        $fp = @fsockopen($host, $port, $errno, $errstr, 30); 

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        if ($fp){ 

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            @fputs($fp, “GET $path HTTP/1.1rnHost: $hostrnAccept: */*rnReferer:$urlrnUser-Agent: $user_agentrnConnection: Closernrn”); 

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        } 

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        $content = ”; 

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        while ($str = @fread($fp, 4096)){ 

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            $content .= $str; 

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        } 

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        @fclose($fp); 

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        //Redirect 

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        if(preg_match(“/^HTTP/d.d 301 Moved Permanently/is”, $content)){ 

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            if(preg_match(“/Location:(.*?)rn/is”, $content, $murl)){ 

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                return fsock_get_contents($murl[1]); 

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            } 

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        } 

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        //Read contents 

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        if(preg_match(“/^HTTP/d.d 200 OK/is”, $content)){ 

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            preg_match(“/Content-Type:(.*?)rn/is”, $content, $murl); 

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            $contentType = trim($murl[1]); 

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            $content = explode(“rnrn”, $content, 2); 

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            $content = $content[1]; 

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        } 

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        return $content; 

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    } 

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} 

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function get_page_contents($url) 

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{ 

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    $content = ”; 

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    if(function_exists(‘curl_init’)) { 

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        $content = curl_get_contents($url); 

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    } elseif (function_exists(‘fsockopen’)) { 

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        $content = curl_get_contents($url); 

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    } else echo “函数 curl_init 和 fsockopen 都为关闭,请至少打开一个.”; 

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    return $content; 

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} 

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function td_id($url) 

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{ 

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    if(preg_match(‘/http://hd.tudou.com/program/([A-Za-z0-9-_]+)/’, $url, $hd)) { 

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        $target_url = “http://hd.tudou.com/program/”.$hd[1]; 

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    } elseif (preg_match(‘/http://www.tudou.com/programs/view/([A-Za-z0-9-_]+)/’, $url, $td)) { 

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        $target_url = “http://www.tudou.com/programs/view/”.$td[1]; 

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    } 

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    $content = get_page_contents($target_url); 

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    preg_match(‘/iid.*?([0-9]+)/’, $content, $tudou); 

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    $tudou_id = $tudou[1]; 

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    return $tudou_id; 

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} 

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function get_flv($video_id) 

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{ 

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    $flv_link = “”; 

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    $target_url = ‘http://v2.tudou.com/v2/cdn?id=’.$video_id; 

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    $video_data = get_page_contents($target_url); 

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    preg_match(‘/<f w=”([0-9]+)”/’, $video_data, $match_num); 

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    preg_match(‘/http://(.*?)?/’, $video_data, $match_url); 

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    preg_match(‘/key=([w]+)/’, $video_data, $match_key); 

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    $flv_link = ‘http://’.$match_url[1].‘?’.$match_num[1].‘&key=’.$match_key[1].‘&id=tudou’; 

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    return $flv_link; 

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} 

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?> 

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<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> 

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<html xmlns=“http://www.w3.org/1999/xhtml”> 

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<head> 

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<meta http-equiv=“Content-Type” content=“text/html; charset=utf-8” /> 

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<title>PHP解析土豆FLV真实地址</title> 

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</head> 

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<body> 

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支持以下两种格式<br /> 

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<a href=“javascript://” onclick=“document.getElementById(‘url’).value = this.title;” title=“http://hd.tudou.com/program/6358/?isRenhe=1”>http://hd.tudou.com/program/6358/?isRenhe=1</a><br /> 

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<a href=“javascript://” onclick=“document.getElementById(‘url’).value = this.title;” title=“http://www.tudou.com/programs/view/CsaJSSBC6T8/”>http://www.tudou.com/programs/view/CsaJSSBC6T8/</a><br /> 

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<form action=“<?php echo $_SERVER[‘PHP_SELF’]; ?>” method=“post”> 

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    <label>URL 

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        <input type=“text” name=“url” id=“url” style=“width:300px;” /> 

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    </label> 

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    <label> 

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        <input type=“submit” name=“button” id=“button” value=“解析” /> 

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    </label> 

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</form> 

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<div style=“clear:both;”></div> 

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<?php 

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if($_POST) { 

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echo ‘FLV真是地址:’.get_flv(td_id($_POST[‘url’])); 

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} 

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?> 

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</body> 

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</html>
PHP解析土豆FLV真实地址(转)

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