<slide title="Custom Backend">
<blurb>
You can change the session backend datastore from a script using
session_module_name().
</blurb>
<example><![CDATA[<?php
  session_module_name("files");  // ASCII files

  session_module_name("mm");     // Shared memory

  session_module_name("user");   // Custom session backend
?>]]></example>

<blurb>
You can also define your own custom session backend datastore using the 
session_set_save_handler() function.
</blurb>

<example><![CDATA[<?php
  session_set_save_handler("myOpen", "myClose",
                         "myRead", "myWrite",
                         "myDestroy", "myGC");
?>]]></example>
<blurb>
You would then write these 6 functions.
</blurb>
</slide>
