Minor - fixing PHP warnings.

main/inc/lib/fileManage.lib.php

@@ -260,6 +260,7 @@ function copyDirTo($orig_dir_path, $destination, $move = true) {
 	$save_dir = getcwd();
 	// Extract directory name - create it at destination - update destination trail
 	$dir_name = basename($orig_dir_path);
+    $dir_to_copy = array();
 	if (is_dir($orig_dir_path)) {
 		mkdir($destination.'/'.$dir_name, api_get_permissions_for_new_directories());
 		$destination_trail = $destination.'/'.$dir_name;

main/inc/lib/fileUpload.lib.php

@@ -465,6 +465,7 @@ function dir_total_space($dir_path) {
 	chdir($dir_path) ;
 	$handle = opendir($dir_path);
     $sumSize = 0;
+    $dirList = array();
 	while ($element = readdir($handle)) {
 		if ( $element == '.' || $element == '..') {
 			continue; // Skip the current and parent directories

main/newscorm/lp_edit_item_prereq.php

@@ -30,9 +30,9 @@ $tbl_lp = Database::get_course_table(TABLE_LP_MAIN);
 $tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
 $tbl_lp_view = Database::get_course_table(TABLE_LP_VIEW);
 
-$isStudentView = (int) $_REQUEST['isStudentView'];
-$learnpath_id = (int) $_REQUEST['lp_id'];
-$submit = $_POST['submit_button'];
+$isStudentView = isset($_REQUEST['isStudentView']) ? (int) $_REQUEST['isStudentView'] : null;
+$learnpath_id = isset($_REQUEST['lp_id']) ? (int) $_REQUEST['lp_id'] : null;
+$submit = isset($_POST['submit_button']) ? $_POST['submit_button'] : null;
 
 /* MAIN CODE */