resize on upload

<?php
/*
Modification of the following plugin:

Plugin Name: resize-on-upload
Version: 1.0.1
Plugin URI: http://blog.yeticode.co.uk/resize-on-upload
Description: Provides the ability to set a maximum width or height an uploaded image can be, if the image is larger then it is resized.
Author: John Tindell
Author URI: http://blog.yeticode.co.uk/
*/
if ( ! class_exists( 'ROU_Admin' ) ) {

	class ROU_Admin{

		public function check_image_size($array){
			//error_log(print_r($array,true));
			$options['rou_max_width'] = 1920;
			$options['rou_max_height'] = 1600;
			$options = apply_filters('tm_framework_rou_options',$options);
			/** HOW TO USE:
			add_filter('tm_framework_rou_options','tm_framework_rou_options_filter');
			function tm_framework_rou_options_filter($options) {
				$options['rou_max_height'] = 1920;
				return $options;
			}
			**/
			

			//skip if file ends with ".noresize"
			$_pathinfo = pathinfo($array['url']);
			if(substr($_pathinfo['filename'], ((-1)*strlen('.noresize')) ) == '.noresize') {
				return $array;
			}

			//do resize
			if($this->startsWith($array['type'],"image")){
				// the content type says its an image so lets run with it
				$path_to_file = $array['file'];
				// check the width and height against the maximum allowed
				$image_size = getimagesize($path_to_file);
				// if they are greater then scale the image down
				//$options = get_option('ROU_Options',"");

				// ok actually check the size of the image and not just
				// ignore it like....
				if($image_size[0] >  $options['rou_max_width'] || $image_size[1] > $options['rou_max_height']){
					//$new_path = image_resize( $path_to_file, $options['rou_max_width'], $options['rou_max_height'] );
					$editor = wp_get_image_editor( $path_to_file );
					$new_path = $editor->resize($options['rou_max_width'], $options['rou_max_height']);
					
					$editor->save($path_to_file);
					//unlink($path_to_file);
					//rename($new_path,$path_to_file);
				}
				// save image
			}
			return $array;
		} // end check_image_size
		
		
		//http://stackoverflow.com/questions/834303/php-startswith-and-endswith-functions
		function startsWith($haystack, $needle){
    		return !strncmp($haystack, $needle, strlen($needle));
		}

	} // END ROU_Admin
}

add_action('wp_handle_upload', array(new ROU_Admin(),'check_image_size'));