How to accept files and get their suffix using PHP

The HTML form uses the html form to simulate a post request for file upload. The code is as follows:

File UploadSend this File:

Note:

Make sure the file upload form is The attribute is enctype="multipart/form-data", otherwise the file cannot be uploaded

First of all, you need to explain the PHP global variable $_FILES. This array contains all uploaded file information

• $_FILE['userfile']['name'] : The original name of the client machine file

• $_FILE['userfile']['type'] : MIME type of file

• $_FILE['userfile']['size'] : Uploaded file size

• $_FILE[ 'userfile']['tmpname'] : The temporary file name stored on the server after the file is uploaded

• $_FILE['userfile']['error'] : Upload with the file Error code

Ideas

1. Generate a 40-digit random string as the file name
2. Transfer the file to different locations depending on whether it is a picture or a voice. File location
3. File size and file type verification will not be performed for the time being

function processFile($files, $type) { 
    $uploadName = null; 
    foreach ($files as $name => $value) { 
      $originalName = $value['name']; 
      $arr = explode(".", $originalName); 
      $postfix = $arr[count($arr) - 1]; 
      $tmpPath = $value['tmp_name']; 
      $tmpType = $value['type']; 
      $tmpSize = $value['size']; 
    } 
     
    $newname = EhlStaticFunction::generateRandomStr(40).".".$postfix; 
     
    switch ($type) { 
      case 1 :  
        // 处理声音文件 
        $destination = VIDEOUPLOADDIR.$newname; 
        break; 
      case 2 : 
        // 处理图像文件 
        $destination = IMAGEUPLOADDIR.$newname; 
        break; 
    } 
     
    move_uploaded_file($tmpPath, $destination); 
  }

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