Tuesday, February 3, 2015

upload and download file from server/remote

download.php


<?php
error_reporting(E_ALL ^ E_DEPRECATED);
    mysql_connect("localhost","root","");
mysql_select_db("updown");
    $fetc = "SELECT * FROM files LIMIT 5";
    $result = mysql_query($fetc);
?>
<body>
<?php
while($row1=mysql_fetch_array($result))
{
    $name=$row1['name'];
    $type=$row1['type'];
    ?>
<div class="rect">
<img alt="down-icon" src="down-drop-icon.png" align="left" width="20" height="20" />
<a href="downfile.php?filename=<?php echo $name ;?>" >
<?php echo $name ;?></a>
</div>
<?php
}
?>

</body>



downfile.php



<?php
function output_file($file, $name, $mime_type='')
{
 if(!is_readable($file)) die('File not found or inaccessible!');
 $size = filesize($file);
 $name = rawurldecode($name);
 $known_mime_types=array(
    "htm" => "text/html",
    "exe" => "application/octet-stream",
    "zip" => "application/zip",
    "doc" => "application/msword",
    "jpg" => "image/jpg",
    "php" => "text/plain",
    "xls" => "application/vnd.ms-excel",
    "ppt" => "application/vnd.ms-powerpoint",
    "gif" => "image/gif",
    "pdf" => "application/pdf",
    "txt" => "text/plain",
    "html"=> "text/html",
    "png" => "image/png",
    "jpeg"=> "image/jpg"
 );

 if($mime_type==''){
     $file_extension = strtolower(substr(strrchr($file,"."),1));
     if(array_key_exists($file_extension, $known_mime_types)){
        $mime_type=$known_mime_types[$file_extension];
     } else {
        $mime_type="application/force-download";
     };
 };

 //turn off output buffering to decrease cpu usage
 @ob_end_clean();

 // required for IE, otherwise Content-Disposition may be ignored
 if(ini_get('zlib.output_compression'))
 ini_set('zlib.output_compression', 'Off');
 header('Content-Type: ' . $mime_type);
 header('Content-Disposition: attachment; filename="'.$name.'"');
 header("Content-Transfer-Encoding: binary");
 header('Accept-Ranges: bytes');

 // multipart-download and download resuming support
 if(isset($_SERVER['HTTP_RANGE']))
 {
    list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
    list($range) = explode(",",$range,2);
    list($range, $range_end) = explode("-", $range);
    $range=intval($range);
    if(!$range_end) {
        $range_end=$size-1;
    } else {
        $range_end=intval($range_end);
    }

    $new_length = $range_end-$range+1;
    header("HTTP/1.1 206 Partial Content");
    header("Content-Length: $new_length");
    header("Content-Range: bytes $range-$range_end/$size");
 } else {
    $new_length=$size;
    header("Content-Length: ".$size);
 }

 /* Will output the file itself */
 $chunksize = 1*(1024*1024); //you may want to change this
 $bytes_send = 0;
 if ($file = fopen($file, 'r'))
 {
    if(isset($_SERVER['HTTP_RANGE']))
    fseek($file, $range);

    while(!feof($file) &&
        (!connection_aborted()) &&
        ($bytes_send<$new_length)
          )
   
        $buffer = fread($file, $chunksize);
        echo($buffer);
        flush();
        $bytes_send += strlen($buffer);
    }
 fclose($file);
 } else
 //If no permissiion
 die('Error - can not open file.');
 //die
die();
}
//Set the time out
set_time_limit(0);

//path to the file
$file_path='zdata/'.$_REQUEST['filename'];


//Call the download function with file path,file name and file type
output_file($file_path, ''.$_REQUEST['filename'].'', 'text/plain');
?>



upload.php



<form action="uploadfile.php" method="post" enctype="multipart/form-data" >
<input type="file" name="uploadedimage" />
<input type="submit" value="Submit" />
</form>




uploadfile.php



<?php
error_reporting(E_ALL ^ E_DEPRECATED);
mysql_connect("localhost","root","");
mysql_select_db("updown");

    function GetImageExtension($imagetype)
    {
       if(empty($imagetype)) return false;
       switch($imagetype)
       {
           case 'image/bmp': return '.bmp';
           case 'image/gif': return '.gif';
           case 'image/jpeg': return '.jpg';
           case 'image/png': return '.png';
           default: return false;
       }
     }



if (!empty($_FILES["uploadedimage"]["name"])) {

$file_name=$_FILES["uploadedimage"]["name"];
$temp_name=$_FILES["uploadedimage"]["tmp_name"];
$imgtype=$_FILES["uploadedimage"]["type"];
$ext= GetImageExtension($imgtype);
$imagename=date("d-m-Y")."-".time().$ext;
$target_path = "zdata/".$imagename;


if(move_uploaded_file($temp_name, $target_path)) {

  $query_upload="INSERT into files (name,type) VALUES ('".$imagename."','".$ext."')";
mysql_query($query_upload) or die("error in $query_upload == ----> ".mysql_error());

}else{

   exit("Error While uploading image on the server");
}

}

?>




database structure

create table files(sno int not null primary key, name varchar(50),type varchar(10));


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