Documented the __sleep and __wakeup member functions when

serializing/unserializing objects in both function references.


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@104987 c90b9560-bf6c-de11-be94-00142212c4b1

reference/var/functions/serialize.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
+<!-- $Revision: 1.3 $ -->
 <!-- splitted from ./en/functions/var.xml, last change in rev 1.28 -->
   <refentry id="function.serialize">
    <refnamediv>
@@ -31,6 +31,13 @@
     references to itself. References inside the array/object you 
     are <function>serialize</function>ing will also be stored.
    </simpara>
+   <simpara>
+   When serializing objects, PHP will attempt to call the member function 
+__sleep() prior to serialization. This is to allow the object to do any 
+last minute clean-up, etc. prior to being serialized. Likewise, when the 
+object is restored using <function>unserialize</function> the __wakeup() 
+member function is called.
+   </simpara>
    <!-- TODO
         in 4.0.4pl1 this didn't work properly, however, there
         been some fixes. I don't know whether this all

reference/var/functions/unserialize.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <!-- splitted from ./en/functions/var.xml, last change in rev 1.2 -->
   <refentry id="function.unserialize">
    <refnamediv>
@@ -37,6 +37,7 @@
      </para>
     </note>
     <para>
+     If the variable being unserialized is an object, after successfully reconstructing the object PHP will automatically attempt to call the __wakeup() member function (if it exists). 
      <example>
       <title>unserialize_callback_func example</title>
       <programlisting role="php">