<?php
//GET AN INSTANCE OF GBXML
$data_type = 'messages';
$record_delim = 'message';
$filename = '../data/data.xml';
$gbXML = new gbXML($data_type, $record_delim, $filename);
// Validate browser input ------------------------------------------------------------
$id = isset($_GET['id']) ? $_GET['id'] : FALSE;
$order = isset($_GET['order']) ? $_GET['order'] : FALSE;
$error = FALSE;
if (!is_numeric($id)) {
$error = TRUE;
$errorMsg = 'The ID provided is not a number.';
} else {
if (!$gbXML->tag_and_value_exist('id', $id)) {
$error = TRUE;
$errorMsg = 'The ID provided does not match any record in the GuestBook.';
}
}
//REMOVE THE RECORD FROM THE DATA.XML FILE
//If we fail, set the error flag
if ($gbXML->delete_record_from_file($id) === FALSE) {
$error = TRUE;
$errorMsg = 'An unknown error occurred: the guest book record could not be deleted.';
}
if ($error === TRUE) {
echo <<<HTML
\t<p class="error">{$errorMsg}</p>
<p><a href="modify.php">Back to Delete Menu</a></p>
<p>
<p class="error">The id supplied is not a number. Please try again.</p>
<p><a href="javascript: history.go(-1);">Go back</a></p>
HTML;
include '../includes/admin_footer.php';
exit;
}
//Instantiate a gbXML object to work with the guestbook entries
$data_type = 'messages';
$record_delim = 'message';
$filename = '../data/data.xml';
$mygbXML = new gbXML($data_type, $record_delim, $filename);
//Check that the id we are trying to edit actually exists
$tag_name = 'id';
$tag_value = $_GET['id'];
if (!$mygbXML->tag_and_value_exist($tag_name, $tag_value)) {
echo <<<HTML
<p class="error">The id supplied does not exist in the guest book. Please try again.</p>
<p><a href="javascript: history.go(-1);">Go back</a></p>
HTML;
include '../includes/admin_footer.php';
exit;
}
//go to the guestbook and get the ID requested to edit
if (!($recordArray = $mygbXML->get_record_from_file($_GET['id']))) {
echo <<<HTML
<p class="error">An unknown error occured. The record could not be read from the data file.</p>
<p><a href="javascript: history.go(-1);">Go Back</a></p>
HTML;
