PHP encapsulated Single file (picture) Upload class Complete Example _php tips

The example in this article describes the single file (picture) upload class that is encapsulated in PHP. Share to everyone for your reference, specific as follows:

<?php//Encapsulation PHP Single file (picture) upload class///Parameter 1: $file file array 5 property values Name,type,size,tmp,error//Parameter 2: File save path $path//Parameter 3: File upload allowed type $ Allow array $allow =array (' image/jpeg ', ' image/jpg ', ' image/png ', ' image/gif ')//Parameter 4: Maximum size allowed for file uploads $size//return value: Returns $
The name of the ImageName file/header (' Content-type:text/html;charset=utf-8 ');
   Class upload{//defines a property that specifically stores the error message public static $error;
    Method of File Transfer public function UploadFile ($file, $size, $path) {if (!is_dir ($path)) {$this->mkpath ($path);
   $allow =array (' image/jpeg ', ' image/jpg ', ' image/png ', ' image/gif ');
     First, determine if the file has been uploaded to the temporary directory if (!is_array ($file)) {Upload:: $error = ' Not a valid file ';
    return false;  //Determine if the file is uploaded to the temp directory successfully switch ($file [' ERROR ']) {case 1:upload:: $error = ' uploaded file over php.ini upload_max_filesize The value of the option limit.
      ';
    return false; Case 2:upload:: $error = ' the size of the upload file exceeds the value specified by the Max_file_size option in the HTML form.
      ';
    return false;
      Case 3:upload:: $error = ' file is only partially uploaded ';
    return false; Case 4:upload:: $error =' No files were uploaded ';
    return false;
      Case 6:upload:: $error = ' No temporary folder found ';
    return false;
       Case 7:upload:: $error = ' file write Failed ';
   return false;
     //Determine if the file type is a picture if (!in_array ($file [' type '], $allow)) {Upload:: $error = ' is not a required file type ';
    return false;
     //Determine whether the file size is within the allowable range if ($file [' Size ']> $size) {Upload:: $error = ' exceeds maximum file size allowed ';
    return false; //File Transfer if (Move_uploaded_file ($file [' Tmp_name '], $path. ')
    /'. $this->getname ($file)) {return $file [' name '];
    }else{return Upload:: $error;
  }//Create directory method Private function Mkpath ($path) {mkdir ($path);
    }//File Rename Private function GetName ($file) {return time (). $file [' name '];

 }
}

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