Make attribute handling more robust

Author: technicalguru

src/TgUtils/Html.php

@@ -16,13 +16,14 @@ class Html {
      */
 	public static function renderStartTag($tagName, $attributes = array(), $closeTag = FALSE) {
 		$rc = '<'.$tagName;
-		foreach ($attributes AS $name => $value) {
-			if (is_array($value)) $value = implode(' ', $value);
-			if (is_string($value) && trim($value) != '') {
-				$rc .= ' '.$name.'="'.htmlspecialchars($value).'"';
+		if (is_array($attributes)) {
+			foreach ($attributes AS $name => $value) {
+				if (is_array($value)) $value = implode(' ', $value);
+				if (is_string($value) && trim($value) != '') {
+					$rc .= ' '.$name.'="'.htmlspecialchars($value).'"';
+				}
 			}
 		}
-
 		if ($closeTag) $rc .= '/';
 		$rc .= '>';
 		return $rc;