RelatedListViewSession constructor php7

include/ListView/RelatedListViewSession.php

@@ -23,13 +23,20 @@ class RelatedListViewSession {
 	var $sorder = null;
 	var $sortby = null;
 	var $page_view = null;
-
-	function RelatedListViewSession() {
-		global $log,$currentModule;
+	
+	function __construct()
+    {
+        global $log,$currentModule;
 		$log->debug("Entering RelatedListViewSession() method ...");
 
 		$this->module = $currentModule;
 		$this->start =1;
+    }
+	function RelatedListViewSession() {
+		// PHP4-style constructor.
+        // This will NOT be invoked, unless a sub-class that extends `foo` calls it.
+        // In that case, call the new-style constructor to keep compatibility.
+        self::__construct();
 	}
 
 	public static function addRelatedModuleToSession($relationId, $header) {