Rotate archived images to correct orientation

correctImageOrientation.php

<?php
/*
Correct image orientation v1.0

Author: Mathuvathanan Mounasamy

Licensed under the MIT license

This funtion correct all the images' orientation in a given path or directory.

Run: 	php -r "require 'correctImageOrientation.php'; correctImageOrientation('test/');"
	or
     	php -r "require 'correctImageOrientation.php'; correctImageOrientation('test/test1');"
     	or
     	php -r "require 'correctImageOrientation.php'; correctImageOrientation('test');"
*/
	function correctImageOrientation($directory) {
		$scanned_directory = array_diff(scandir($directory), array('..', '.'));
		echo "<pre>";
		print_r("scanned directory: \r\n");
		print_r($scanned_directory);
		echo "</pre>\r\n";
		foreach ($scanned_directory as &$file) {
			
			if (is_dir($directory."/".$file)) {
				correctImageOrientation($directory."/".$file);
			} else {									
				$filen = explode(".", $file);
				$ext = end($filen);
				try {
					
					$exif = @exif_read_data($directory."/".$file);
					
					$orientation = $exif['Orientation'];
					
					if (isset($orientation) && $orientation != 1){
						switch ($orientation) {
							case 3:
							$deg = 180;
							break;
							case 6:
							$deg = 270;
							break;
							case 8:
							$deg = 90;
							break;
						}
					
						if ($deg) {
						
							// If png
							if ($ext == "png") {
								$img_new = imagecreatefrompng($directory."/".$file);
								$img_new = imagerotate($img_new, $deg, 0);
		
								// Save rotated image
								imagepng($img_new,$directory.$file);
							}else {
								$img_new = imagecreatefromjpeg($directory."/".$file);
								$img_new = imagerotate($img_new, $deg, 0);
							
								// Save rotated image
								imagejpeg($img_new,$directory."/".$file,80);
							}
						}
						echo "<pre>";
						print_r("image changed: \r\n");
						print_r($directory."/".$file);
						echo "</pre>\r\n";
					}
								
				} catch (Exception $e) {
					echo "error:";
					echo $e;
					echo "error";
				}
			}
		}
		unset($file);
	}
	
?>

Great pity code I can't work with .jpeg