upload.class (utdrag) :


function validate_size() { 
    $temp_file_name = trim($this->temp_file_name); 
    $max_file_size = trim($this->max_file_size); 

    if (!$temp_file_name) { 
        $size = filesize($temp_file_name); 
            if ($size > $max_file_size) { 
                return false;                                                         
            } else { 
                return true; 
            } 
    } else { 
        return false; 
    }     
} 


 
function get_file_size() { 
    //SECTION #1 
    $temp_file_name = trim($this->temp_file_name); 
    $kb = 1024; 
    $mb = 1024 * $kb; 
    $gb = 1024 * $mb; 
    $tb = 1024 * $gb; 

        //SECTION #2 
        if ($temp_file_name) { 
            $size = filesize($temp_file_name); 
            if ($size < $kb) { 
                $file_size = "$size Bytes"; 
            } 
            elseif ($size < $mb) { 
                $final = round($size/$kb,2); 
                $file_size = "$final KB"; 
            } 
            elseif ($size < $gb) { 
                $final = round($size/$mb,2); 
                $file_size = "$final MB"; 
            } 
            elseif($size < $tb) { 
                $final = round($size/$gb,2); 
                $file_size = "$final GB"; 
            } else { 
                $final = round($size/$tb,2); 
                $file_size = "$final TB"; 
            } 
        } else { 
            $file_size = "ERROR: NO FILE PASSED TO get_file_size()"; 
        } 
        return $file_size; 
} 




 
function get_max_size() { 
    $max_file_size = trim($this->max_file_size); 
    $kb = 1024; 
    $mb = 1024 * $kb; 
    $gb = 1024 * $mb; 
    $tb = 1024 * $gb; 

    if ($max_file_size) { 
        if ($max_file_size < $kb) { 
            $max_file_size = "max_file_size Bytes"; 
        } 
        elseif ($max_file_size < $mb) { 
            $final = round($max_file_size/$kb,2); 
            $max_file_size = "$final KB"; 
        } 
        elseif ($max_file_size < $gb) { 
            $final = round($max_file_size/$mb,2); 
            $max_file_size = "$final MB"; 
        } 
        elseif($max_file_size < $tb) { 
            $final = round($max_file_size/$gb,2); 
                $max_file_size = "$final GB"; 
        } else { 
            $final = round($max_file_size/$tb,2); 
            $max_file_size = "$final TB"; 
        } 
    } else { 
        $max_file_size = "ERROR: NO SIZE PARAMETER PASSED TO  get_max_size()"; 
    } 
        return $max_file_size; 
} 







include "upload.class";

$upload_class = new Upload_Files; 
$upload_class->temp_file_name = trim($_FILES['upload']['tmp_name']); 
$upload_class->file_name = trim(strtolower($_FILES['upload']['name'])); 
$upload_class->upload_dir = "uploads/"; 
$upload_class->upload_log_dir = "uploads/upload_logs/"; 
$upload_class->max_file_size = 5242880; 
$upload_class->banned_array = array(""); 
$upload_class->ext_array = array(".jpg",".gif",".jpeg",".png"); 

$valid_ext = $upload_class->validate_extension(); 
$valid_size = $upload_class->validate_size(); 
$valid_user = $upload_class->validate_user(); 
$max_size = $upload_class->get_max_size(); 
$file_size = $upload_class->get_file_size(); 
$upload_directory = $upload_class->get_upload_directory(); 
$upload_log_directory = $upload_class->get_upload_log_directory(); 
$upload_file = $upload_class->upload_file_with_validation();



if (!$valid_ext) { 
        $result = "The file extension is invalid, please try again!"; 
    } 
    elseif (!$valid_size) { 
        $result = "The file size is invalid, please try again! The maximum file size is: $max_size and your file was: $file_size"; 
    } 
    elseif (!$valid_user) { 
        $result = "You have been banned from uploading to this server."; 
    } 
    elseif ($file_exists) { 
        $result = "This file already exists on the server, please try again."; 
    } else { 
        $upload_file = $upload_class->upload_file_with_validation(); 
        if (!$upload_file) { 
            $result = "Your file could not be uploaded!"; 
        } else { 
            $result = "Your file has been successfully uploaded to the server."; 
        } 
    }
	
echo $result;