PHP 8.1 fixes; fixed adding users

lib/FronkDB/FronkDB.php

@@ -253,6 +253,8 @@ class FronkDB {
 		if(!is_array($fields)) {
 			$fields=preg_split('/ ?, ?/',$fields);
 		}
+    
+    $fstr = "";
 
 		foreach($fields as $f)
 		{

lib/mvcfronk/mfBase/mfBaseModel.php

@@ -58,6 +58,10 @@ class mfBaseModel {
 	}
 
 	public function load($row) {
+    if(!is_object($this->data)) {
+      $this->data = new stdClass();
+    }
+    
 		foreach($row as $field => $value) {
 			if($this->fieldprefix) {
 				if(preg_match('/^'.$this->fieldprefix.'_(.+)$/',$field,$m)) {

lib/mvcfronk/mfRouter/mfRouter.php

@@ -31,7 +31,7 @@ class mfRouter {
 		if(defined("DEFAULT_ROUTE") && strlen(DEFAULT_ROUTE)) {
 			$defroute=explode("_",DEFAULT_ROUTE);
 			$this->default['mod']=$defroute[0];
-			if($defroute[1]) {
+			if(count($defroute) == 2 && $defroute[1]) {
 				$this->default['action']=$defroute[1];
 			}
 			
@@ -49,9 +49,9 @@ class mfRouter {
     // get mod and action
 		if(preg_match('/^([^_]+)(?:_(.+)?)?$/',$request['action'],$m)) {
       $umod = $m[1];
-			$this->mod=$m[1];
-			$this->action="Index";
-			if($m[2]) {
+			$this->mod = $m[1];
+			$this->action = "Index";
+			if(count($m) == 3 && $m[2]) {
         $uaction = $m[2];
 				$this->action=$m[2];
 			}

lib/mvcfronk/mfUser/mfUser.php

@@ -5,7 +5,7 @@ class mfUser extends mfBaseModel {
 	public $data;
 	
   
-  public function __construct() {
+  public function __construct($_ = null) {
     $this->db=FronkDB::singleton();
 		$this->log=mfLoghandler::singleton();