[ PHP | lib ] respond from AJAX request

ajax_respond.php

<?
// remember to set proper headers!
/**
 * RESPOND WITH VALID JSON STRING (FROM AJAX)
 * it's more of a standard than a particular function =) .
 * descriptions for below parameters are RECOMMENDED usage, each one of them can be of any type 
 **
 * $success (bool)   => if AJAX operation succeded
 * $cause   (string) => very quick explanation: "<type> <operation> <operation parameter>"
 * $more    (array)  => if more info occured, here's the place to return it 
 **
 * returns nothing;
 * > exits execution
 **/
function respond($success, $cause, $more="") { // respond with normalized JSON format from all files requested by ajax
    exit(json_encode(array('success'=>$success,'cause'=>$cause,'more'=>$more)));
}
?>