Curl get image and data

curl_get_image

<?php                          
class curl_get_image{
       
        private $image_name = "";
        private $data = "";
       
        private $dir = "";
       
        private $details = array();
       
        public function init($dir = "/images/"){
                $this->dir = $dir;
                $details['image_location'] = $this->dir;
                $details['image_name'] = "";
                $details['image_type'] = "";
                $details['url'] = "";
        }
       
        private function get_data($url){
                $ch = curl_init();
                $timeout = 5;
                curl_setopt($ch,CURLOPT_URL,$url);
                curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
                curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
                $data = curl_exec($ch);
                curl_close($ch);
               
                return $data;  
        }
       
        private function store_image($name, $type, $data){
                if(!file_put_contents($this->dir.$name, $data))
                        return false;
                else
                        return true;
        }
       
        public function get_image($url, $rand=false){
               
                $name = end(explode("/", $url));
                $type = end(explode(".", $name));
               
                $rand ? $name = $this->gen_secure_id(30).".".$type : $name = $name;
       
                $details = array();
                $details['image_location'] = $this->dir;
                $details['image_name'] = $name;
                $details['image_type'] = $type;
                $details['url'] = $url;
               
                $this->details = $details;
               
                $return = $this->store_image($name, $type, $this->get_data($url));
                if($return)
                        return true;
                else
                        return "failed to store image";
        }
       
        private function gen_secure_id($size){
            $char = range("a", "z");
            $numb = range(1, 9);
            $merge = array_merge($char, $numb);
 
            $string = "";
 
            for($x=0; $x != $size; $x++){
                $n = "";
                $n = rand(0, count($merge) -1);
                $string .= $merge[$n];
            }
 
            return trim($string);
        }
       
        public function return_image_location(){
                return $this->details['image_location'];
        }
       
        public function return_image_name(){
                return $this->details['image_name'];
        }
       
        public function return_image_type(){
                return $this->details['image_type'];
        }
       
        public function return_image_url(){
                return $this->details['url'];
        }
       
}                                              
 
$image = new curl_get_image();
$image->init("dump/");
echo $image->get_image("http://si0.twimg.com/profile_images/1378674922/tf2-heavy.jpg", true);
echo "<br />";
echo $image->return_image_location();
echo "<br />";
echo $image->return_image_name();
echo "<br />";
echo $image->return_image_type();
echo "<br />";
echo $image->return_image_url();