function parseDirections($in)
{
$arr = array();
$x = 0;
$y = 0;
$arr = addToArr($x, $y, $arr);
for ($i = 0; $i < strlen($in); $i++) {
$instruction = substr($in, $i, 1);
switch ($instruction) {
case "^":
$y--;
break;
case "v":
$y++;
break;
case ">":
$x++;
break;
case "<":
$x--;
break;
default:
die("Unrecognised instruction");
}
$arr = addToArr($x, $y, $arr);
}
$count = 0;
foreach ($arr as $row) {
foreach ($row as $col) {
$count++;
}
}
echo "Houses: {$count}\n";
}
if (count($qarr) != 0) {
$t = implode(" AND ", $qarr);
$query .= " AND " . $t;
}
$q = $conn->query($query);
if ($q->num_rows != 0) {
while ($r = $q->fetch_assoc()) {
$id = $r['id'];
$occ = $r['dl'];
addScore($id, 5 + $occ / 200);
}
}
$qarr = array();
addToArr("notes.sch", $usersch);
addToArr("notes.lvl", $userlvl);
addToArr("notes.subj", $usersubj);
if (count($qarr) != 0) {
$t = implode(" AND ", $qarr);
}
$warr = explode(" ", $userq);
foreach ($warr as $x) {
$query = "SELECT indextable.notesid, indextable.occurrence\r\n\t\t FROM indextable INNER JOIN notes ON indextable.notesid = notes.id\r\n\t\t WHERE indextable.word = '{$x}' ";
if (isset($t)) {
$query .= " AND " . $t;
}
$q = $conn->query($query);
if ($q->num_rows != 0) {
while ($r = $q->fetch_assoc()) {
$id = $r['indextable.notesid'];
$occ = $r['indextable.occurrence'];
addScore($id, 1 + $occ / 100);
