php-pagebuilder Code

<?php
session_start();
$user_ID=$_SESSION[user_ID];
if (!$user_ID || $user_ID=='0')
{
  header('location: index.php');
  die('Login failed');
}
require("util.php");
$sql = new MySQL_class;
$sql->Create("generator");
$esql = new MySQL_class;
$esql->Create("generator");
$table=$_SESSION[var_table];
$project=$_SESSION[var_project];
$field=$_SESSION[var_field];
?>
<?php
$field=($_POST['field']);
$intern=quote($_POST['intern']);
$f_dta = $sql->data[sql];
if ($f_dta <> 0) {
	$esql->QueryItem("show fields from $project_lup.$table_lup and `Field`=$f_dta");
	if ($esql->data[LNR]==0) {die ('No valid data in \'SQLName\''); }
}
$title=quote($_POST['title']);
$Name=quote($_POST['Name']);
$SessionVar=quote($_POST['SessionVar']);
$Type=quote($_POST['Type']);
$suffix=quote($_POST['suffix']);
$width=quote($_POST['width']);
$height=quote($_POST['height']);
$List=quote($_POST['List']);
$Record=quote($_POST['Record']);
$add=quote($_POST['add']);
$edit=quote($_POST['edit']);
$link_table=quote($_POST['link_table']);
$link_where=quote($_POST['link_where']);
$link_field=quote($_POST['link_field']);
$link_display=quote($_POST['link_display']);
$default=quote($_POST['default']);
$order=quote($_POST['order']);
$sql->Update("UPDATE `field` SET
`sql`=$intern,
`title`=$title,
`name`=$Name,
`sessionvar`=$SessionVar,
`type`=$Type,
`suffix`=$suffix,
`width`=$width,
`height`=$height,
`list`=$List,
`record`=$Record,
`add`=$add,
`edit`=$edit,
`link_table`=$link_table,
`link_where`=$link_where,
`link_field`=$link_field,
`link_display`=$link_display,
`default`=$default,
`order`=$order WHERE `field`='$field' AND `table`='$table'");
$affected_rows = $sql->a_rows;
echo "<P><FONT FACE=\"Verdana, sans-serif\"><FONT SIZE=1 STYLE=\"font-size: 8pt\">";
echo "Er is/zijn $affected_rows records gewijzigd<BR>";
echo "$field<BR>";
echo "$intern<BR>";
echo "$title<BR>";
echo "$Name<BR>";
echo "$SessionVar<BR>";
echo "$Type<BR>";
echo "$suffix<BR>";
echo "$width<BR>";
echo "$height<BR>";
echo "$List<BR>";
echo "$Record<BR>";
echo "$add<BR>";
echo "$edit<BR>";
echo "$link_table<BR>";
echo "$link_where<BR>";
echo "$link_field<BR>";
echo "$link_display<BR>";
echo "$default<BR>";
echo "$order<BR>";
echo "</P>";
if ($affected_rows=1) {
	echo "<script>window.opener.location.reload(true)</script>";
	echo "<script>window.close(self)</script>";
}
$_SESSION[last_63]=$field;
?>
<INPUT TYPE=BUTTON VALUE="Close" onClick="window.opener.location.reload(true);self.close()">