Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0

Udah nanya ama my master dapat deh jawabannya, matikan register_globals dengan init_set();

Matikan juga warning untuk session. Kodenya sebagai berikut:

ini_set(’register_globals’,'Off’);
ini_set(’session.bug_compat_warn’,0);

Hengkang deh warning!!

ini nih fungsinya :

function createThumbnail($imageDirectory, $imageName,
                         $thumbName, $thumbsize, $thumbDirectory="")
{
  $fileType = strtolower(substr($imageName, -3));
  if ($fileType=='jpg')
  {
    $srcImg=imagecreatefromjpeg($imageDirectory.'/'.$imageName);
  }
  elseif ($fileType=='png')
  {
    $srcImg=imagecreatefrompng($imageDirectory.'/'.$imageName);
  }
  else
  {
    echo "<br>No Support images".$imageDirectory.'/'.$imageName;
  }
  if ($fileType=='jpg' || $fileType=='png')
  {
  $oldWidth = imageSX($srcImg);
  $oldHeight = imageSY($srcImg);

if ($oldWidth > $oldHeight)
  {
    $newWidth = $thumbsize;
    $newHeight = $oldHeight*($thumbsize/$oldWidth);
  } 

  if ($oldWidth < $oldHeight)
  {
    $newWidth = $oldWidth*($thumbsize/$oldHeight);
    $newHeight = $thumbsize;
  } 

  if ($oldWidth == $oldHeight)
  {
    $newWidth = $thumbsize;
    $newHeight = $thumbsize;
  }

  $thumbImg=ImageCreateTrueColor($newWidth,$newHeight);
  imagecopyresampled($thumbImg,$srcImg,0,0,0,0,$newWidth,
                     $newHeight,$oldWidth,$oldHeight);

  if ($thumbDirectory==""){
    imagejpeg($thumbImg,'',$thumbsize);
  }else{
    imagejpeg($thumbImg,$thumbDirectory.'/'.$thumbName.$imageName);
  }
  }
}

Fungsi ini hanya bisa meresize images jpg dan png.

Keterangan parameter :

• $imageDirectory : Folder letak source images
• $imageName : Nama images yang akan diresize
• $thumbName : Pemberian nama awal thumbnail
• $thumbsize : Ukuran thumbnail (pixel)
• $thumbDirectory : letak folder hasil thumbnail, Jika parameter $thumbDirectory null maka fungsi akan menghasilkan kode binary dari hasil resize, yang bisa dimasukkan kedalam database.

Contoh:

createThumbnail("img/", "sea.jpg", "thumb_", 600,"thumbs/" );

Jika banyak foto yang mau diresize, berikut contohnya:

Fungsi untuk mendapatkan list images di directory :

function getListImages($dir)
{
 $images = array();
 if (is_dir($dir)) {
  if ($d = opendir($dir)) {
   while (($file = readdir($d)) !== false) {
    if ($file!="." && $file!="..")
    {
      $images[] = $file;
    }
   }
  closedir($d);
  }
}
return $images;
}

Pemakaian kedua fungsi diatas :

$sourceImages = "C:/Data/Fhoto/album1";
$thumbImages = "gallery/thumbs/album1";
$thumbSize = 600;
$thumbName = "thumb_";

$getImages=getListImages($sourceImages);

if (is_array($getImages))
{
  foreach($getImages as $i=> $img)
  {
   if (!file_exists("$thumbImages/$img")){
     createThumbnail($sourceImages, $img, $thumbName,
                     $thumbSize,$thumbImages);
   }
  }
  echo "$i thumbs has been created";
 }
 else
 {
   echo "No Images found!";
 }

Demikian semoga bermanfaat.