Resize Image using Php

SimpleImage.php
----------------------

<?php
class SimpleImage {

   var $image;
   var $image_type;

   function load($filename) {

      $image_info = getimagesize($filename);
      $this->image_type = $image_info[2];
      if( $this->image_type == IMAGETYPE_JPEG ) {

         $this->image = imagecreatefromjpeg($filename);
      } elseif( $this->image_type == IMAGETYPE_GIF ) {

         $this->image = imagecreatefromgif($filename);
      } elseif( $this->image_type == IMAGETYPE_PNG ) {

         $this->image = imagecreatefrompng($filename);
      }
   }
   function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {

      if( $image_type == IMAGETYPE_JPEG ) {
         imagejpeg($this->image,$filename,$compression);
      } elseif( $image_type == IMAGETYPE_GIF ) {

         imagegif($this->image,$filename);
      } elseif( $image_type == IMAGETYPE_PNG ) {

         imagepng($this->image,$filename);
      }
      if( $permissions != null) {

         chmod($filename,$permissions);
      }
   }
   function output($image_type=IMAGETYPE_JPEG) {

      if( $image_type == IMAGETYPE_JPEG ) {
         imagejpeg($this->image);
      } elseif( $image_type == IMAGETYPE_GIF ) {

         imagegif($this->image);
      } elseif( $image_type == IMAGETYPE_PNG ) {

         imagepng($this->image);
      }
   }
   function getWidth() {

      return imagesx($this->image);
   }
   function getHeight() {

      return imagesy($this->image);
   }
   function resizeToHeight($height) {

      $ratio = $height / $this->getHeight();
      $width = $this->getWidth() * $ratio;
      $this->resize($width,$height);
   }

   function resizeToWidth($width) {
      $ratio = $width / $this->getWidth();
      $height = $this->getheight() * $ratio;
      $this->resize($width,$height);
   }

   function scale($scale) {
      $width = $this->getWidth() * $scale/100;
      $height = $this->getheight() * $scale/100;
      $this->resize($width,$height);
   }

   function resize($width,$height) {
      $new_image = imagecreatetruecolor($width, $height);
      imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
      $this->image = $new_image;
   }

function resizes($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
if( $this->image_type == IMAGETYPE_GIF || $this->image_type == IMAGETYPE_PNG ) {
$current_transparent = imagecolortransparent($this->image);
if($current_transparent != -1) {
$transparent_color = imagecolorsforindex($this->image, $current_transparent);
$current_transparent = imagecolorallocate($new_image, $transparent_color['red'], $transparent_color['green'], $transparent_color['blue']);
imagefill($new_image, 0, 0, $current_transparent);
imagecolortransparent($new_image, $current_transparent);
} elseif( $this->image_type == IMAGETYPE_PNG) {
imagealphablending($new_image, false);
$color = imagecolorallocatealpha($new_image, 0, 0, 0, 127);
imagefill($new_image, 0, 0, $color);
imagesavealpha($new_image, true);
}
}
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}

}
?>

------------------------------------------

<?php
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->resizeToWidth(250);
   $image->save('picture2.jpg');
?>
----------------------------
<?php
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->scale(50);
   $image->save('picture2.jpg');
?>
---------------------------
<?php
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->resizeToHeight(500);
   $image->save('picture2.jpg');
   $image->resizeToHeight(200);
   $image->save('picture3.jpg');
?>
---------------------------------
<?php
   header('Content-Type: image/jpeg');
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->resizeToWidth(150);
   $image->output();
?>
---------------------------------
<?php
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->resizes(190,50);
   $img=rand(1, 1000000);
   $image->save("$img.jpg");
?>
---------------------------
<?php
   if( isset($_POST['submit']) ) {

      include('SimpleImage.php');
      $image = new SimpleImage();
      $image->load($_FILES['uploaded_image']['tmp_name']);
      $image->resizeToWidth(150);
      $image->output();
   } else {

?>

   <form action="upload.php" method="post" enctype="multipart/form-data">
      <input type="file" name="uploaded_image" />

      <input type="submit" name="submit" value="Upload" />

   </form>

<?php
   }
?>

get all image in follwing folder

pictures/gallery/gal

<?php
$cc=dirname(__FILE__);
?>
<?php
   //path to directory to scan
$directory = $cc."/pictures/*/*/";

//get all image files with a .jpg extension.
$images = glob($directory . "*.jpg");

//print each file name
include('SimpleImage.php');
foreach($images as $image)
{
   $image2 = new SimpleImage();
   $image2->load($image);
   $image2->resize(192,70);
   $image2->save(''.time().'.jpg');

$filename = basename($image);
echo $filename."<br/>";
sleep(1);
}

$handle = opendir(dirname(realpath(__FILE__)).'/pictures/');
        while($file = readdir($handle)){
            if($file !== '.' && $file !== '..'){
                echo '<img src="pictures/'.$file.'" border="4"  width="200px" height="150" />';
            }
        }
?>


    <?php
    //path to directory to scan. i have included a wildcard for a subdirectory
    $directory = "pictures/*/*/";
   
    //get all image files with a .jpg extension.
    $images = glob("" . $directory . "*.jpg");
   
    $imgs = '';
    // create array
    foreach($images as $image){ $imgs[] = "$image"; }
   
    //shuffle array
    shuffle($imgs);
   
    //select first 20 images in randomized array
    $imgs = array_slice($imgs, 0, 20);
   
    //display images
    foreach ($imgs as $img) {
    echo "<img src='$img' /> ";
    }
    ?>