Zend FR

<?php
class Zend_Image
{
const TYPE_JPG = 'jpg';
const TYPE_GIF = 'gif';
const TYPE_PNG = 'png';
    public function filenameToMime ($filename)
    {
        $types = array(
            'jpg' => self::TYPE_JPG,
            'gif' => self::TYPE_GIF,
            'png' => self::TYPE_PNG
        );
        foreach ($types as $extension => $mime)
        {
            if (preg_match('/.'.$extension.'$/', $filename))
            {
                return $mime;
                
            }
        }
        throw new Zend_Exception('Unknown image type.');
    }
    /**
     * Returns a PHP image resource
     */
    public function readImage ($filename, $type = NULL)
    {
        if ($type === NULL)
        {
            $type = $this->filenameToMime($filename);
        }
        switch ($type)
        {
            case self::TYPE_JPG:
                return imagecreatefromjpeg($filename);
                break;
            case self::TYPE_GIF:
                return imagecreatefromgif($filename);
                break;
            case self::TYPE_PNG:
                return imagecreatefrompng($filename);
                break;
            default:
                break;
        }
    }
    /**
     * Doesn't return anything
     */
    public function writeImage ($image, $type = NULL, $filename = NULL)
    {
        if ($type === NULL)
        {
            $type = $this->filenameToMime($filename);
        }
        switch ($type)
        {
            case self::TYPE_JPG:
                imagejpeg($image, $filename);
                break;
            case self::TYPE_GIF:
                imagegif($image, $filename);
                break;
            case self::TYPE_PNG:
                imagepng($image, $filename);
                break;
            default:
                break;
        }
    }
    public function resize ($image, $width = NULL, $height = NULL, $fit = NULL)
    {
        $fit = (bool) $fit;
        // if no bounding box supplied, then return the original image
        if ($width === NULL && $height === NULL)
        {
            return $image;
        }
        $origX = $newX = imagesx($image);
        $origY = $newY = imagesy($image);
        $origR = $origY / $origX;
        // if height only was specified
        if ($width === NULL && $height !== NULL)
        {
            if ($origY >= $height || $fit == true) 
            {
                $newY = $height;
                $newX = $newY / $origY * $origX;
            }
        }
        // if width only was specified
        if ($width !== NULL && $height === NULL)
        {
            if ($origX >= $width || $fit == true)
            {
                $newX = $width;
                $newY = $newX / $origX * $origY;
            }
        }
        // if width and height specified
        if ($width !== NULL && $height !== NULL)
        {
            // if the image fits and $fit is off, just return the original
            // image (since it fits in the bounding box)
            if ($origX < $width && $orimagecopyresampledigY < $height && $fit == false)
            {
                return $image;
            }
            $newR = $height / $width;
            // we now need to work out whether to restrain by width or by height
            if ($origR > $newR)
            {
                $newY = $height;
                $newX = $newY / $origY * $origX;
            }
            else
            {
                $newX = $width;
                $newY = $newX / $origX * $origY;
            }        
        }
        // now we know the new image's dimensions
        $new = imagecreatetruecolor($newX, $newY);
        imagecopyresampled($new, $image, 0, 0, 0, 0, $newX, $newY, $origX, $origY);
        return $new;
    }
}

?>

function resizeAction ()
{
require_once 'Zend/Image.php';
 $this->_helper->layout->disableLayout();

  $this->_helper->removeHelper('viewRenderer');

       $this->_helper->viewRenderer->setNoRender(true);

         
        $image = new Zend_Image();
        $fileName=$_GET['filename'];
        
        $monFichier= substr(strrchr($_GET['filename'],'/'),1) ;
  

        $im = $image->readImage($_GET['filename']);
        $new = $image->resize($im, $_GET['width'], $_GET['height'], true);

       
        $type = $Image->filenameToMime($filename);
      
    
         $this->getResponse()->setHeader('Content-type',$type)
                ->setheader('Content-Disposition','inline; filename='.$filename.';');
                           
        $this->getResponse()->setBody($image->writeImage($new));


}

 $img_logo ='<img src=" http://'.$_SERVER['HTTP_HOST'].$this->baseUrl().'/index/resize?filename='. PUBLIC_PATH . 'images/logos/'. $clients['cli_id'] . '.' . $clients['cli_logo'].'&width=50&height=50" alt="'. $clients['client_rs'].'" />';