image upload

       function insert() {

            $data = array();

            /* Uploading Profile Images */
            $imagePath = realpath(APPPATH . '../assets/images/');
            $logo = $_FILES['logo']['tmp_name'];
            $favicon = $_FILES['favicon']['tmp_name'];
            if ($logo !== "") {
                $config['upload_path'] = $imagePath;
                $config['allowed_types'] = 'jpg|png|jpeg|gif';
                $config['file_name'] = date('Ymd_his_') . rand(10, 99) . rand(10, 99) . rand(10, 99);
                $this->load->library('upload', $config);
                if ($this->upload->do_upload('logo')) {
                    $uploadData = $this->upload->data();
                    $data['logo'] = $uploadData['file_name'];
                }

                $config['image_library'] = 'gd2';
                $config['source_image'] = $uploadData['full_path'];
                $config['new_image'] = $imagePath . '/crop';
                $config['quality'] = '100%';
                $config['maintain_ratio'] = FALSE;
                //Set cropping for y or x axis, depending on image orientation
                if ($uploadData['image_width'] > $uploadData['image_height']) {
                    $config['width'] = $uploadData['image_height'];
                    $config['height'] = $uploadData['image_height'];
                    $config['x_axis'] = (($uploadData['image_width'] / 2) - ($config['width'] / 2));
                } else {
                    $config['height'] = $uploadData['image_width'];
                    $config['width'] = $uploadData['image_width'];
                    $config['y_axis'] = (($uploadData['image_height'] / 2) - ($config['height'] / 2));
                }

                $this->image_lib->clear();
                $this->image_lib->initialize($config);
                $this->image_lib->crop();

                $config['source_image'] = $imagePath . '/crop/' . $uploadData['file_name'];
                $config['new_image'] = $imagePath . '/final';
                $config['maintain_ratio'] = FALSE;
                $config['width'] = 250;
                $config['height'] = 250;

                $this->image_lib->clear();
                $this->image_lib->initialize($config);
                $this->image_lib->resize();

                /* Deleting Uploaded Image After Croping and Resizing */
                /* Why Deleting because it's saving space */
                unlink($uploadData['full_path']);
            }


            if ($favicon !== "") {
                $config['upload_path'] = $imagePath;
                $config['allowed_types'] = 'jpg|png|jpeg|gif';
                $config['file_name'] = date('Ymd_his_') . rand(10, 99) . rand(10, 99) . rand(10, 99);
                $this->load->library('upload', $config);
                if ($this->upload->do_upload('favicon')) {
                    $uploadData = $this->upload->data();
                    $data['favicon'] = $uploadData['file_name'];
                }

                $config['image_library'] = 'gd2';
                $config['source_image'] = $uploadData['full_path'];
                $config['new_image'] = $imagePath . '/crop';
                $config['quality'] = '100%';
                $config['maintain_ratio'] = FALSE;
                //Set cropping for y or x axis, depending on image orientation
                if ($uploadData['image_width'] > $uploadData['image_height']) {
                    $config['width'] = $uploadData['image_height'];
                    $config['height'] = $uploadData['image_height'];
                    $config['x_axis'] = (($uploadData['image_width'] / 2) - ($config['width'] / 2));
                } else {
                    $config['height'] = $uploadData['image_width'];
                    $config['width'] = $uploadData['image_width'];
                    $config['y_axis'] = (($uploadData['image_height'] / 2) - ($config['height'] / 2));
                }

                $this->image_lib->clear();
                $this->image_lib->initialize($config);
                $this->image_lib->crop();

                $config['source_image'] = $imagePath . '/crop/' . $uploadData['file_name'];
                $config['new_image'] = $imagePath . '/final';
                $config['maintain_ratio'] = FALSE;
                $config['width'] = 250;
                $config['height'] = 250;

                $this->image_lib->clear();
                $this->image_lib->initialize($config);
                $this->image_lib->resize();

                /* Deleting Uploaded Image After Croping and Resizing */
                /* Why Deleting because it's saving space */
                unlink($uploadData['full_path']);
            }
        }