【翻译】Video Upload MIME types（视频上传MIME类型）

From http://www.htmlforums.com/php-programming/t-video-upload-mime-types-105680.html

  if(isset($_POST['submit']) && $_POST['submit'] == 'Submit') //if form has been submitted 
  { 
    //for now: 

    if ($_FILES["file"]["error"] > 0) 
      { 
      //echo "Error: " . $_FILES["file"]["error"] . "<br />"; 
      } 
    else 
      { 
    if ((($_FILES["file"]["type"] == "video/x-msvideo") //.avi 
        || ($_FILES["file"]["type"] == "video/quicktime") //quicktime  
        || ($_FILES["file"]["type"] == "video/x-ms-asf") 
        || ($_FILES["file"]["type"] == "video/mp4") 
        || ($_FILES["file"]["type"] == "audio/x-ms-wmv") 
        || ($_FILES["file"]["type"] == "video/x-ms-wmv") 
        || ($_FILES["file"]["type"] == "video/mpeg")) 
        && ($_FILES["file"]["size"] < 10000000))  
        { 
      echo "Upload: " . $_FILES["file"]["name"] . "<br />"; 
      echo "Type: " . $_FILES["file"]["type"] . "<br />"; 
      echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />"; 
      echo "Stored in: " . $_FILES["file"]["tmp_name"]; 
      if (move_uploaded_file($_FILES["file"]["tmp_name"],"/tmp/".$_FILES["file"]["name"])) { 
          echo "file moved"; 
          include "putfile.php"; 
        } else { 
        echo "move failed"; 
      } 
      } else { 
          echo "wrong type of file please try again...."; 
      } 
       }  

用以上代码无法上传 .wmv 和 .avi 文件，不知何故？