add nested or not to collection

Author: mhndev

src/Collection.php

@@ -273,27 +273,40 @@ public function count()
 
 
     /**
+     * @param bool $nested
      * @return array
      * @throws \Exception
      */
-    public function toArray()
+    public function toArray($nested = true)
     {
         $ar = [];
 
-        foreach ($this->items as $item){
+        if($nested){
+            foreach ($this->items as $item){
+
+                if(! method_exists($item, 'toArray')){
+                    throw new \Exception('item class has not method toArray');
+                }
+                else{
+                    $ar[] = $item->toArray();
+                }
 
-            if(! method_exists($item, 'toArray')){
-                throw new \Exception('item class has not method toArray');
             }
-            else{
-                $ar[] = $item->toArray();
+        }else{
+            foreach ($this->items as $item){
+                $ar[] = $item;
             }
-
         }
 
+
         return $ar;
     }
+    
 
+    /**
+     * @return array
+     * @throws \Exception
+     */
     public function preview()
     {
         $ar = [];