根据各视频网站网址获取SWF链接的PHP实例仅供参考

class VideoSwfApi extends CApplicationComponent {
	public $url;
	public $alias = array("ku6", "youku", "tudou", "sohu", "letv", "iqiyi", "qq");
	
	private static $instance;
	public static function getInstance() {
		if (is_null(self::$instance)) {
			self::$instance = new self();
		}
		return self::$instance;
	}
	
	public function fetch($url = null) {
		if (is_null($url)) {
			$url = $this->url;
		}
		
		if (empty($url)) {
			return false;
		}
		
		
		$parse = parse_url($url);
		if (!isset($parse["host"]) || empty($parse["host"])) {
			return false;
		}
		
		$alias = $this->_getAlias($parse["host"]);
		$func = $alias."Api";
		if (!method_exists($this, $func)) {
			return $this->baiduApi($url);
		}
		return $this->$func($url);
	}
	
	/**
	 * 酷6
	 * @param unknown $url
	 * @return string
	 */
	public function ku6Api($url) {
		return "http://player.ku6.com/refer/". $this->_filename($url) ."/v.swf";
	}
	
	/**
	 * 优酷
	 * @param unknown $url
	 * @return boolean|mixed
	 */
	public function youkuApi($url) {
		$uri = "https://openapi.youku.com/v2/videos/show_basic.json";
		$params = array(
			"client_id" => "840c098f672da0c6",
			"video_url" => $url
		);
		$content = $this->_curl($uri."?".http_build_query($formdata));
		if (empty($content)) {
			return false;
		}
		
		$data = json_decode($content, true);
		if (empty($data)) {
			return false;
		}
		return $data["player"];
	}
	
	/**
	 * 土豆
	 * @param unknown $url
	 * @return boolean
	 */
	public function tudouApi($url) {
		$uri = "http://api.tudou.com/v6/video/info?app_key=6334753012795e9c&format=json&itemCodes=".$this->_filename($url);
		$content = $this->_curl($uri);
		if (empty($content)) {
			return false;
		}
		
		$data = json_decode($content, true);
		if (empty($data)) {
			return false;
		}
		return $data["results"][0]["outerPlayerUrl"];
	}
	
	/**
	 * 搜狐
	 * @param unknown $url
	 * @return string|boolean
	 */
	public function sohuApi($url) {
		$content = $this->_curl($url);
		if (preg_match("/<meta[^>]+property="og:videosrc"[^>]+content="([^>]+)"[^>]*/>/i", $content, $matches)) {
			return trim($matches[1]);
		}
		return false;
	}
	
	/**
	 * 乐视网
	 * @param unknown $url
	 * @return string
	 */
	public function letvApi($url) {
		return "http://i7.imgs.letv.com/player/swfPlayer.swf?id=". $this->_filename($url) ."&autoplay=0";
	}
	
	
	private function _getAlias($host) {
		$host = strtolower($host);
		$arr = explode(".", $host);
		if ($arr[0] == "www") {
			array_shift($arr);
		}
		array_pop($arr);
		
		$alias = $this->alias;
		foreach ($alias as $name) {
			if (in_array($name, $arr)) {
				return $name;
			}
		}
		return false;
	}
	
	private function _build($stat, $url = null) {
		return array("stat" => $stat, "url" => $url);
	}
	
	private function _filename($url) {
		$parseUrl = parse_url($url);
		$path = $parseUrl["path"];
		$pathInfo = pathinfo($path);
		$filename = $pathInfo["filename"];
		return $filename;
	}
	
	private function _curl($url) {
		$referer = "http://www.baidu.com";
		$header = array(
			"Host" => "www.baidu.com",
			"User-Agent" => "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36",
			"X-Requested-With" => "XMLHttpRequest",
		);
		
		$curl = curl_init();
		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
		curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
		curl_setopt($curl, CURLOPT_REFERER, $referer);
		$content = curl_exec($curl);
		curl_close($curl);
		return $content;
	}
}