making deep set/get possible using dot notation

readme.md

@@ -33,6 +33,11 @@ $ary['newItem']=20;
 
 count($ary); //returns 3
 $ary->all(); // returns simple php array;
+
+// deep assignment/retrieval
+$ary = ary(['products' => ['desk' => ['price' => 100]]]);
+$value = $ary['products.desk.price']; //100
+$ary['production.table.weight']=200; 
 ~~~~~~
 
 

src/Ary.php

@@ -97,7 +97,16 @@ class Ary implements ArrayAccess, Countable, IteratorAggregate, JsonSerializable
         if ($this->offsetExists($key)) {
             return $this->items[$key];
         }
-        return $default;
+
+        $array = $this->items;
+        foreach (explode('.', $key) as $segment) {
+            if (!is_array($array) || !array_key_exists($segment, $array)) {
+                return $default;
+            }
+
+            $array = $array[$segment];
+        }
+        return $array;
     }
 
     /**
@@ -122,10 +131,28 @@ class Ary implements ArrayAccess, Countable, IteratorAggregate, JsonSerializable
     {
         if (is_null($key)) {
             $this->items[] = $value;
+            return;
         }
-        else {
+
-            $this->items[$key] = $value;
+//        $this->items[$key] = $value;
+
+        $keys = explode('.', $key);
+        $array =& $this->items;
+        while (count($keys) > 1) {
+            $key = array_shift($keys);
+
+            // If the key doesn't exist at this depth, we will just create an empty array
+            // to hold the next value, allowing us to create the arrays to hold final
+            // values at the correct depth. Then we'll keep digging into the array.
+            if (!isset($array[$key]) || !is_array($array[$key])) {
+                $array[$key] = [];
+            }
+
+            $array = &$array[$key];
         }
+
+        $array[array_shift($keys)] = $value;
+        return;
     }
 
     /**

test/Test.php

@@ -61,6 +61,9 @@ class Test extends PHPUnit_Framework_TestCase
     {
         $ary = new Ary();
         $this->assertEquals($ary[0], null);
+
+        $ary = new Ary(['x' => ['xx' => ['m' => 'xxx']]]);
+        $this->assertEquals($ary->get('x.xx.m'), 'xxx');
     }