extension jpeg o jpg en los uploads?

[mayid]

Ahi va:

Código PHP:

  <?php 
 
    /** 
     * Thumbnail 
     *  
     * Crea una miniatura de una imagen y la guarda en un formato especifico 
     *  
     * @package  
     * @author Snd234 
     * @copyright 2008 
     * @version 1.0 
     * @access public 
     */ 
    class Thumbnail { 
        // informacion de la miniatura 
        private $thumbnail; 
        private $thumbnail_width; 
        private $thumbnail_height; 
         
        // informacion de la imagen original 
        private $image; 
        private $image_width; 
        private $image_height; 
        private $image_type; 
         
        public $error; 
         
        /** 
         * Thumbnail::__construct() 
         *  
         * @param mixed $source 
         * @return 
         */ 
        public function __construct($source) { 
            $image_info = getimagesize($source); 
             
            if($image_info) { 
                $this->image_width = $image_info[0]; 
                $this->image_height = $image_info[1]; 
                $this->image_type = $image_info[2]; 
                 
                switch($this->image_type) { 
                    case IMAGETYPE_JPEG: { 
                        $this->image = imagecreatefromjpeg($source); 
                        break; 
                    } 
                     
                    case IMAGETYPE_GIF: { 
                        $this->image = imagecreatefromgif($source); 
                        break; 
                    } 
                     
                    case IMAGETYPE_PNG: { 
                        $this->image = imagecreatefrompng($source); 
                        break; 
                    } 
                     
                    default: { 
                        $this->error = "Formato no soportado"; 
                        break; 
                    } 
                } 
            }  
            else { 
                $this->error = "Formato invalido"; 
            } 
        } 
         
        /** 
         * Thumbnail::resize() 
         *  
         * @param mixed $width 
         * @param integer $height 
         * @return void 
         */ 
        public function resize($width, $height = 0) { 
            $this->thumbnail_width = $width; 
             
            if($height == 0) { 
                $this->thumbnail_height = $width; 
            } else { 
                $this->thumbnail_height = $height; 
            } 
             
            $this->thumbnail = imagecreatetruecolor($this->thumbnail_width, $this->thumbnail_height); 
             
            imagecopyresampled( 
                $this->thumbnail, $this->image, 0, 0, 0, 0, 
                $this->thumbnail_width, $this->thumbnail_height, 
                $this->image_width, $this->image_height 
            ); 
        } 
         
        /** 
         * Thumbnail::save_jpg() 
         *  
         * @param mixed $dir 
         * @param mixed $name 
         * @param integer $quality 
         * @return 
         */ 
        public function save_jpg($dir, $name, $quality = 95) { 
            $path = $dir . $name . image_type_to_extension(IMAGETYPE_JPEG); 
            imagejpeg($this->thumbnail, $path, $quality); 
             
            imagedestroy($this->thumbnail); 
        } 
         
        /** 
         * Thumbnail::save_gif() 
         *  
         * @param mixed $dir 
         * @param mixed $name 
         * @return 
         */ 
        public function save_gif($dir, $name) { 
            $path = $dir . $name . image_type_to_extension(IMAGETYPE_GIF); 
            imagegif($this->thumbnail, $path); 
             
            imagedestroy($this->thumbnail); 
        } 
         
        /** 
         * Thumbnail::save_png() 
         *  
         * @param mixed $dir 
         * @param mixed $name 
         * @return 
         */ 
        public function save_png($dir, $name) { 
            $path = $dir . $name . image_type_to_extension(IMAGETYPE_PNG); 
            imagegif($this->thumbnail, $path); 
             
            imagedestroy($this->thumbnail); 
        } 
    } 
     
?>