[svn r12166] Fixed warning messages for empty array

main/newscorm/scormResource.class.php

@@ -116,6 +116,7 @@ class scormResource {
 	    			default:
 				     	//if($first_item->type == XML_ELEMENT_NODE) this is already check prior to the call to this function
 				     	$children = $element->childNodes;
+				    	if(is_array($children)){
 					    	foreach($children as $child)
 					     	{
 					     		switch($child->nodeType)
@@ -139,6 +140,7 @@ class scormResource {
 					     				break;
 					     		}
 					     	}
+				     	}
 				     	//$keep_href = '';
 				     	if($element->hasAttributes()){ //in some cases we get here with an empty attributes array
 				     	//TODO find when and why we get such a case (empty array)