PHP 获取视频时长的实例代码


            具体代码如下所示：







/*

* 获得视频文件的缩略图和视频长度

* @date 2018-05-16

* @copyright

*/

//获得视频文件的总长度时间和创建时间 根据视频长度判断是否失效

public function getTime($url)

{

  //获取视频重定向后的链接

  $location = locationUrl($url);

  //获取视频Content-Length

  $responseHead = get_data($location);

  $list1 = explode("Content-Length: ", $responseHead);

  $list2 = explode("Connection", $list1[1]);

  $list = explode("x", $list2[0]);

  return $list[0];

}

//获取视频重定向后的链接

function locationUrl($url){

  $url_parts = @parse_url($url);

  if (!$url_parts) return false;

  if (!isset($url_parts['host'])) return false;

  if (!isset($url_parts['path'])) $url_parts['path'] = '/';

  $sock = fsockopen($url_parts['host'], (isset($url_parts['port']) ? (int)$url_parts['port'] : '80'), $errno, $errstr, 30);

  if (!$sock) return false;

  $request = "HEAD " . $url_parts['path'] . (isset($url_parts['query']) ? '?'.$url_parts['query'] : '') . " HTTP/1.1\r\n";

  $request .= 'Host: ' . $url_parts['host'] . "\r\n";

  $request .= "Connection: Close\r\n\r\n";

  fwrite($sock, $request);

  $response = '';

  while(!feof($sock)) {

    $response .= fread($sock, 8192);

  }

  fclose($sock);

  if (preg_match('/^Location: (.+?)$/m', $response, $matches)){

    if ( substr($matches[1], 0, 1) == "/" ){

      return $url_parts['scheme'] . "://" . $url_parts['host'] . trim($matches[1]);

    }

    else{

      return trim($matches[1]);

    }

  } else {

    return false;

  }

}

//审核视频 curl

function get_data($url){

  $oCurl = curl_init();

  //模拟浏览器

  $header[] = "deo.com";

  $user_agent = "Mozilla/4.0 (Linux; Andro 6.0; Nexus 5 Build) AppleWeb/537.36 (KHTML, like Gecko)";

  curl_setopt($oCurl, CURLOPT_URL, $url);

  curl_setopt($oCurl, CURLOPT_HTTPHEADER,$header);

  curl_setopt($oCurl, CURLOPT_HEADER, true);

  curl_setopt($oCurl, CURLOPT_NOBODY, true);

  curl_setopt($oCurl, CURLOPT_USERAGENT,$user_agent);

  curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );

  // 不用 POST 方式请求, 意思就是通过 GET 请求

  curl_setopt($oCurl, CURLOPT_POST, false);

  $sContent = curl_exec($oCurl);

  // 获得响应结果里的：头大小

  $headerSize = curl_getinfo($oCurl, CURLINFO_HEADER_SIZE);

  // 根据头大小去获取头信息内容

  $header = substr($sContent, 0, $headerSize);

  curl_close($oCurl);

  return $header;

}



总结

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