implement array access interface

Author: m-bymike

src/ArrayWrap.php

@@ -24,7 +24,7 @@
  * // Number: 0
  * ```
  *
- * @todo implement Iterator, Countable, ArrayAccess interfaces
+ * @todo implement Iterator, Countable interfaces
  *
  * @package sclable\arrayFunctions
  * @author Michael Rutz <[email protected]>
@@ -34,7 +34,7 @@
  * @SuppressWarnings(PHPMD.ExcessiveClassComplexity)
  *
  */
-class ArrayWrap
+class ArrayWrap implements \ArrayAccess
 {
     /**
      * the raw array data container
@@ -104,6 +104,53 @@ protected function reply(array $data)
         return static::create($data);
     }
 
+    /**
+     * Whether a offset exists
+     * @link http://php.net/manual/en/arrayaccess.offsetexists.php
+     * @param mixed $offset An offset to check for.
+     * @return boolean true on success or false on failure.
+     * The return value will be casted to boolean if non-boolean was returned.
+     */
+    public function offsetExists($offset)
+    {
+        return $this->hasKey($offset);
+    }
+
+    /**
+     * Offset to retrieve
+     * @link http://php.net/manual/en/arrayaccess.offsetget.php
+     * @param mixed $offset The offset to retrieve.
+     * @return mixed Can return all value types.
+     */
+    public function offsetGet($offset)
+    {
+        return $this->hasKey($offset) ? $this->data[$offset] : null;
+    }
+
+    /**
+     * Offset to set
+     * @link http://php.net/manual/en/arrayaccess.offsetset.php
+     * @param mixed $offset The offset to assign the value to.
+     * @param mixed $value The value to set.
+     * @return void
+     */
+    public function offsetSet($offset, $value)
+    {
+        $this->data[$offset] = $value;
+    }
+
+    /**
+     * Offset to unset
+     * @link http://php.net/manual/en/arrayaccess.offsetunset.php
+     * @param mixed $offset The offset to unset.
+     * @return void
+     */
+    public function offsetUnset($offset)
+    {
+        unset($this->data[$offset]);
+    }
+
+
     /**
      * Pad the array to the specified length with a value
      * @see array_pad()