A PHP multi-image upload class code example

Share a PHP class that implements multiple image uploads. This type of file annotation has detailed functions and is practical and has certain scalability. It supports multiple image upload functions in gif, jpg, jpeg, pjpeg, and png formats. It is a rare PHP multi-image upload. kind.

A practical PHP multi-image file upload class that supports multiple image upload functions in gif, jpg, jpeg, pjpeg, and png formats. The class can also limit image types, upload image sizes, set upload directories, and some submission judgments, etc. Function. In addition, this class is not limited to uploading images. It can also upload file types such as TXT/RAR. It just requires some modifications to the code.

Example, the complete function code of PHP multi-image upload class.

<?php
class more_file_upload{
  const FILE_PATH = '/uploadfile/'; //默认文件上传的目录，请自行修改
  var file_type;
  var file_type_array;
  var file_type_real_array;
  var file_type_string;
  var file_name;
  var file_size;
  var file_tmp_name;
  var file_error;
  var handledate;
  static totalsize = 0;
  function __construct(file_name, file_error, file_size, file_tmp_name, file_type){
    this -> handledate = date('m-d-Y');
    if (!empty(file_name)){
      this -> file_name = file_name;
      this -> file_error = file_error;
      this -> file_size = file_size;
      this -> file_tmp_name = file_tmp_name;
      this -> file_type = file_type;
      this -> file_type_array = array('/', 'image/gif', 'image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png');
      this -> file_type_real_array = array(0.1, 'jpg' => 74707370, 'gif' => 7173, 'bmp' => 6677, 'png' => 807871);
      this -> show_execute_message(this -> file_error, this -> file_name, this -> file_type, this -> file_size);
      }
    }
  function __destruct(){
    this -> file_name = NULL;
    this -> file_error = NULL;
    this -> file_size = NULL;
    this -> file_tmp_name = NULL;
    this -> file_type = NULL;
    self :: totalsize = 0;
    }
  function show_execute_message(smfileerror, smfilename, smfiletype, smfilesize){
    if(smfileerror > 0){
      switch (smfileerror){
      case 1: smfilemessage = '<strong>文件超过服务器的约定大小！</strong>';
        break;
      case 2: smfilemessage = '<strong>文件超过指定的文件大小！</strong>';
        break;
      case 3: smfilemessage = '<strong>文件只上传了部分！</strong>';
        break;
      case 4: echo "this->file_name " . '文件上传失败！<br/>';
        break;
        }
      self :: __destruct();
      }else{
      smfiletypeflag = array_search(smfiletype, this -> file_type_array);
      // 进行真实格式验证
      if(smfiletypeflag != false){
        file = fopen(this -> file_tmp_name, "rb");
        bin = fread(file, 10);
        fclose(file);
        strInfo = @unpack("c10chars", bin);
        typeCode = intval(strInfo['chars1'] . strInfo['chars2']);
        smfiletypeflag = array_search(typeCode, this -> file_type_real_array);
        if(smfiletypeflag == false){ // 判断是否是png图片
          typeCode = intval(strInfo['chars2'] . strInfo['chars3'] . strInfo['chars4']);
          smfiletypeflag = array_search(typeCode, this -> file_type_real_array);
          if(smfiletypeflag == false){ // 判断是否是jpg图片
            $typeCode = intval(strInfo['chars7'] . strInfo['chars8'] . strInfo['chars9'] . strInfo['chars10']);
            smfiletypeflag = array_search(typeCode, this -> file_type_real_array);
            }
          }
        } //edit：bbs.it-home.org
      if($smfiletypeflag == false){
        $smfilemessage = '<strong>文件类型不对，请核实！</strong>';
        self :: __destruct();
        }else{
        $resflag = $this -> move_file($this -> file_tmp_name, this -> file_name);
        if (resflag == 1){
          $smfilemessage = '文件上传成功！';
          self :: totalsize += intval($smfilesize);
          self :: __destruct();
          }else{
          $smfilemessage = '<strong>文件上传失败！</strong>';
          self :: __destruct();
          }
        }
      }
    $smfilesizeformat = $this -> size_BKM(smfilesize);
    echo '<tr>
<td align="left" >' . smfilename . '</td>
<td align="center" >' . smfiletype . '</td>
<td align="center" >' . smfilesizeformat . '</td>
<td align="center" >' . smfilemessage . '</td>
</tr>';
    }
  function move_file(mvfiletmp, mvfilename){ // 移动文件
    mvfilenamearr = explode('.', basename(mvfilename));
    mvfilenamearr[0] = this -> rand_string();
    mvfilename = implode('.', mvfilenamearr);
    if (is_uploaded_file(mvfiletmp)){
      uploadfile = self :: FILE_PATH . "mvfilename";
      result = move_uploaded_file(mvfiletmp, uploadfile);
      return result;
      }
    }
  function rand_string(){
    string = md5(uniqid(rand() . microtime()));
    return string;
    }
  function size_BKM(size){ // B/KB/MB单位转换
    if(size < 1024)
    {
      size_BKM = (string)size . " B";
      }
    elseif(size < (1024 * 1024))
      {
      size_BKM = number_format((double)(size / 1024), 1) . " KB";
      }else
      {
      size_BKM = number_format((double)(size / (1024 * 1024)), 1) . " MB";
      }
    return size_BKM;
    }
  }
?>

How to use: Save the above code as a file name: more_upload_file.class.php, and include the file when using it.