PHP picture Upload class instance code (with thumbnail) _php instance

There is a thumbnail feature but it feels incomplete, and there is a problem, continue to learn, in the future modified

<form action= "<?php $_server[' php_self ';?>" enctype= "Multipart/form-data" method= "POST" ><input type = "text" name= "name"/><input type= "file" name= "file"/><input type= "Submission" name= ' submit ' value= ' submitted ' > 
 </form> <?php/** * Created by Phpstorm. * User:administrator * DATE:2016/6/28 * time:21:04/class upload{protected $fileMine;//File Upload type Protec Ted $filepath//File upload path protected $filemax//File Upload size protected $fileExt//File upload format protected $filename;//filename P rotected $fileerror//File error setting protected $fileflag;//file detection protected $fileinfo; FILES protected $ext; 
 
  File extension protected $path; File Upload public function __construct ($filename = "File", $filemax =20000000, $filepath = "./uploads", $fileflag =true,$ 
    Fileext=array (' jpg ', ' exe '), $fileMine =array (' image/jpeg ')) {$this->filename= $filename; 
    $this->fileinfo=$_files[$this->filename]; 
    $this->filemax= $filemax; $this->filepatH= $filepath; 
    $this->fileflag= $fileflag; 
    $this->fileext= $fileExt; 
 
    $this->filemine= $fileMine; 
 
  Var_dump ($this->filename); }//Error judgement Public Function Uperror () {if ($this->fileinfo[' ERROR ']>0) {switch ($this->filei nfo[' ERROR '] {Case 1: $this->fileerror= "Upload file size exceeds the maximum allowed for server upload, php.ini set upload_max_files 
            Value of the ize option limit "; 
          Break 
            Case 2: $this->fileerror= "The upload file size exceeds the value specified by the hidden field max_file_size option in the HTML form"; 
          Break 
            Case 3: $this->fileerror= "file part uploaded"; 
          Break 
            Case 4: $this->fileerror= "did not choose to upload files"; 
          Break 
            Case 5: $this->fileerror= "No temporary directory found"; 
          Break 
            Case 6: $this->fileerror= "file write Failed"; 
          Break 
            Case 7: $this->fileerror= "php file upload extension does not open"; 
          Break 
        Case 8:    $this->fileerror= ""; 
 
        Break 
      return false; 
 
  return true; }//Detect file Type Public Function Upmine () {if (!in_array ($this->fileinfo[' type '], $this->filemine)) {$t 
      his->error= "File upload type is wrong"; 
    return false; 
 
  return true; 
    //Detect file Format Public Function Upext () {$this->ext=pathinfo ($this->fileinfo[' name '],pathinfo_extension); 
    Var_dump ($ext); 
      if (!in_array ($this->ext, $this->fileext)) {$this->fileerror= "incorrect file format"; 
    return false; 
  return true; }//Detect file path Public function Uppath () {if (!file_exists ($this->filepath)) {mkdir ($this->filepath,0777 
    , true); 
    }///Detect File Size public function upsize () {$max = $this->fileinfo[' size ']; 
      if ($max > $this->filemax) {$this->fileerror= "file is too large"; 
    return false; 
  return true; //detects whether the file is HTTP Public function Uppost () {if (!IS_UPLOaded_file ($this->fileinfo[' Tmp_name ')) {$this->fileerror= to "repay maliciously"; 
    return false; 
  return true; 
  The//File name prevents duplicate public function upname () {return MD5 (Microtime (TRUE), True) (UNIQID); 
    //Picture thumbnail public function smallimg ($x =100, $y =100) {$imgAtt =getimagesize ($this->path); 
    Image wide, high, type $imgWidth = $imgAtt [0]; 
    $imgHeight = $imgAtt [1]; 
    $imgext = $imgAtt [2]; 
    Equal-ratio column scaling if (($x/$imgWidth) > ($y/$imgHeight)) {$BL = $y/$imgHeight; 
    }else{$BL = $x/$imgWidth; $x =floor ($imgWidth * $bl); 
    $y =floor ($imgHeight * $bl) after zooming; 
    $images =imagecreatetruecolor ($x, $y); 
    $big =imagecreatefromjpeg ($this->path); 
    Imagecopyresized ($images, $big, 0,0,0,0, $x, $y, $imgWidth, $imgWidth); 
        Switch ($imgext) {Case 1: $imageout =imagecreatefromgif ($this->path); 
      Break 
        Case 2: $imageout =imagecreatefromjpeg ($this->path); 
      Break Case 3: $imAgeout=imagecreatefromgif ($this->path); 
    Break 
 
 
 
 
  $im =imagejpeg ($images, $this->path); //File Dual public Function uploads () {if ($this->uperror () && $this->upmine () && $this ; 
      Upext () && $this->upsize () && $this->uppost ()) {$this->uppath (); 
      $names = $this->upname (); $this->path= $this->filepath. ' /'. $names. '. ' 
 
      $this->ext; 
      if (Move_uploaded_file ($this->fileinfo[' tmp_name '], $this->path)) {return $this->path; 
      }else{$this->fileerror= "upload failed"; }else{exit ("<b>". $this->fileerror. " 
    </b> "); }}}?>

<?php 
  Header ("Content-type:imagejpeg"); 
Header ("Content-type:text/html;charset=utf-8"); 
 Require ' list.php '; 
 $u =new upload (); 
 $a = $u->uploads (); 
 
 $c = $u->smallimg (); 
echo " 

<! DOCTYPE html> 
 
 

Above this PHP image upload class instance code (added thumbnail) is a small series to share all the content, hope to give you a reference, but also hope that we support the cloud-dwelling community.