Add isset and unset

src/Properties.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * This file is part of Properties package.
+ *
+ * @author Serafim <nesk@xakep.ru>
+ * @date 14.04.2016 17:07
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Serafim\Properties;
+
+use Serafim\Properties\Support\Registry;
+use Serafim\Properties\Support\Strings as Str;
+
+/**
+ * Class Properties
+ * @package Serafim\Properties
+ */
+trait Properties
+{
+    use Getters, Setters;
+
+    /**
+     * @param $name
+     * @return bool
+     */
+    public function __isset($name)
+    {
+        // Try to call `getProperty` method
+        $getter = Str::getGetter($name);
+        if (method_exists($this, $getter)) {
+            return true;
+        }
+
+        return Registry::get($this)->has($name);
+    }
+
+    /**
+     * @param $name
+     * @return bool
+     */
+    public function __unset($name)
+    {
+        $registry = Registry::get($this);
+
+        $reflection = new \ReflectionClass($this);
+
+        if ($registry->has($name) && $reflection->hasProperty($name)) {
+            $property = $reflection->getProperty($name);
+
+            if ($property->isProtected() || $property->isPublic()) {
+                unset($this->$name);
+                return true;
+            }
+
+        }
+
+        return false;
+    }
+}