Added the another example to show how to use __set_state() (bug #36674)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@209048 c90b9560-bf6c-de11-be94-00142212c4b1

reference/var/functions/var-export.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.12 $ -->
+<!-- $Revision: 1.13 $ -->
 <!-- splitted from ./en/functions/var.xml, last change in rev 1.6 -->
 <refentry id="function.var-export">
  <refnamediv>
@@ -148,6 +148,51 @@ var_export($a);
 A::__set_state(array(
    'var' => 5,
 ))
+]]>
+    </screen>
+   </example>
+  </para>
+  <para>
+   <example>
+    <title>Using <link linkend="language.oop5.magic.set-state">__set_state</link> (since PHP 5.1.0)</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+class A
+{
+    public $var1;
+    public $var2;
+
+    public static function __set_state($an_array)
+    {
+        $obj = new A;
+        $obj->var1 = $an_array['var1'];
+        $obj->var2 = $an_array['var2'];
+        return $obj;
+    }
+}
+
+$a = new A;
+$a->var1 = 5;
+$a->var2 = 'foo';
+
+eval('$b = ' . var_export($a, true) . ';'); // $b = A::__set_state(array(
+                                            //    'var1' => 5,
+                                            //    'var2' => 'foo',
+                                            // ));
+var_dump($b);
+?>
+]]>
+    </programlisting>
+    &example.outputs;
+    <screen>
+<![CDATA[
+object(A)#2 (2) {
+  ["var1"]=>
+  int(5)
+  ["var2"]=>
+  string(3) "foo"
+}
 ]]>
     </screen>
    </example>