files.upload.fup.php

<?php
class upload
{
    public $mime;
    protected $uploadDirectory;
    protected $size;
    protected $uploadInfo;
    protected $mode;
    protected $status;
    public $ajax = false;
    
    public function __construct($path)
    {
        $this->mime=null;
        $this->path($path);
        $this->advancedMode();
    }
    
    protected function mimeTest($mime)
    {
        if(($mime == $_FILES['FileInput']['type'])&&(isset($mime)&&(!empty($mime))))
        {
            $this->mime=true;
        }
    }
    
    public function mimeConfig($mime=null)
    {
        if(is_array($mime))
        {
            foreach($mime as $val)
            {
                $this->mimeTest($val);
            }
        }
        else 
        {
            $this->mimeTest($mime);
        }
        
        if($mime===null)
        {
            $this->mime=true;
        }
    }
    
    public function setMimes($mime=null)
    {
        if(is_array($mime))
        {
            $this->mime=$mime;
        }
        else
        {
            die(__CLASS__.':'.__METHOD__.':line='.__LINE__);
        }
    }
    
    public function path($path)
    {
        $this->uploadDirectory = $path;//example '/home/website/file_upload/uploads/'
    }
    
    public function maxSize($size)
    {
        $this->size = $size;
    }
    
    public function advancedMode($mode=null)
    {
        switch($mode)
        {
            case true:
                $this->mode = true;
            break;
            default:
                $this->mode = false;
            break;
        }
    }
    
    final public function ajaxSendJson($respond=null)
    {
        if($respond==null)
        {
            return json_encode($this->status);
        }
        else
        {
            return json_encode($this->status[$respond]);
        }
    }
    
    public function name()
    {
        return $this->uploadInfo['newName'];
    }
    
    public function upload()
    {
        $this->status = array();
        if(isset($_FILES["FileInput"])/* && $_FILES["FileInput"]["error"]== UPLOAD_ERR_OK*/)
        {
            $UploadDirectory = $this->uploadDirectory; //specify upload directory ends with / (slash)
             
            /*
             Note : You will run into errors or blank page if "memory_limit" or "upload_max_filesize" is set to low in "php.ini".
             Open "php.ini" file, and search for "memory_limit" or "upload_max_filesize" limit
             and set them adequately, also check "post_max_size".
             */
             
            //check if this is an ajax request
            if($this->mode)
            {
                $this->status['mode']='advanced';
                if($this->ajax===true)
                {
                    $this->status['ajax']=true;
                    if (!isset($_SERVER['HTTP_X_REQUESTED_WITH']))
                    {
                        $this->status['code']="444";
                        return $this->status;
                    }
                }
                else
                {
                    $this->status['ajax']=false;
                }
                
                //Is file size is less than allowed size.
                if ($_FILES["FileInput"]["size"] > $this->size) 
                {
                    $this->status['code']="413";
                    return $this->status;
                }
                 
                //allowed file type Server side check
                if(in_array(strtolower($_FILES['FileInput']['type']),$this->mime)===true)
                {
                    $this->status['mime']=$_FILES['FileInput']['type'];
                }
                else
                {
                    $this->status['code']="415-0"; //output error
                    return $this->status;
                }
            }
            else
            {
                $this->status['mode']='simple';
            }
             
            $File_Name          = strtolower($_FILES['FileInput']['name']);
            $File_Ext           = substr($File_Name, strrpos($File_Name, '.')); //get file extention
            $Random_Number      = rand(0, 9999999999).date('YmdHis'); //Random number to be added to name.
            $NewFileName        = $Random_Number.$File_Ext; //new file name
            
            $this->uploadInfo = array('oldName'=>$File_Name,
                                      'ext'=>$File_Ext,
                                      'rnd'=>$Random_Number,
                                      'newName'=>$NewFileName);
            $this->status['info'] = $this->uploadInfo;
            
            if(!is_dir($UploadDirectory))
            {
                mkdir($UploadDirectory,0777);
            }
            if(move_uploaded_file($_FILES['FileInput']['tmp_name'], $UploadDirectory.$NewFileName))
            {
                // do other stuff
                $this->status['code']="200";
                $this->status['name']=$NewFileName;
                $this->status['path']=$UploadDirectory;
            }
            else
            {
                $this->status['code']="417";
            }
            
        }
        else
        {
            $this->status['code']="404";
        }
        
        return $this->status;
    }
}
?>