<?php
function geraxml() {
$name = "fulano";
//FILE
$file = "data.xml";
//OPEN FILE
$pointer = fopen($arquivo, "w");
//WRITE ON FILE
fwrite($pointer, "<data>");
fwrite($pointer, "<settings>");
fwrite($pointer, "<width>100%</width><height>100%</height>");
fwrite($pointer, "</settings>");
fwrite($pointer, "<item>");
fwrite($pointer, "<name>".$name."</name>");
fwrite($pointer, "</item>");
fwrite($pointer, "</data>");
//CLOSE FILE
fclose($pointer);
}
add_action("wp_logout", "geraxml");
?>
The file will be created in the root folder. Very useful if you need to create a xml file out of a nextgen gallery to be used by a flash gallery for instance.