<?php
// Favorite (upvote) a page
include 'util/dbopen.php';
$page = secureParam($_POST['page'], $conn);
$sql = "INSERT INTO {$upvotesTable} (pageid) VALUES ((SELECT pageid FROM {$pagesTable} WHERE path = '{$page}' LIMIT 1));";
mysqli_query($conn, $sql);
include 'util/dbclose.php';
<?php
// Log a new page change
include 'util/dbopen.php';
$page = secureParam($_POST['page'], $conn);
$ip = secureParam($_SERVER['REMOTE_ADDR'], $conn);
$sql = "INSERT INTO {$pageLogTable} (ip, pageid) VALUES ('{$ip}', (SELECT pageid FROM {$pagesTable} WHERE path = '{$page}' LIMIT 1));";
mysqli_query($conn, $sql);
include 'util/dbclose.php';
<?php
// Gets the current number of people on a page
include './util/dbopen.php';
$page = secureParam($_POST['page'], $conn);
$children = secureParam($_POST['children'], $conn);
// True if we want the count for children of this page, false otherwise
$sql = "";
if ($children) {
$sql = "SELECT COUNT(*) AS viewers " . "FROM (SELECT pageid FROM {$pageLogTable} WHERE logid IN (SELECT MAX(logid) FROM {$pageLogTable} GROUP BY ip) GROUP BY ip) AS pt " . "WHERE pt.pageid IN (SELECT t.child AS pid FROM (SELECT * FROM {$relationsTable} ORDER BY parent DESC) AS t JOIN " . "(SELECT @pv := (SELECT pageid FROM {$pagesTable} WHERE path = '{$page}')) AS tmp WHERE FIND_IN_SET(t.parent, @pv) > 0 ORDER BY pid ASC) OR " . "pt.pageid IN (SELECT pageid FROM {$pagesTable} WHERE path = '{$page}');";
} else {
$sql = "SELECT COUNT(*) AS viewers " . "FROM (SELECT pageid FROM {$pageLogTable} WHERE logid IN (SELECT MAX(logid) FROM {$pageLogTable} GROUP BY ip) GROUP BY ip) AS pt " . "WHERE pt.pageid IN (SELECT pageid FROM {$pagesTable} WHERE path = '{$page}');";
}
if ($result = mysqli_query($conn, $sql)) {
echo intval(mysqli_fetch_assoc($result)["viewers"]);
} else {
echo -1;
}
include './util/dbclose.php';
<?php
// Answer a question
include 'util/dbopen.php';
$id = secureParam($_POST['id'], $conn);
$sql = "UPDATE {$questionsTable} SET answer = 1 WHERE questionsid = {$id};";
mysqli_query($conn, $sql);
include 'util/dbclose.php';
<?php
// Submit a question
include 'util/dbopen.php';
$page = secureParam($_POST['page'], $conn);
$question = secureParam($_POST['question'], $conn);
$sql = "INSERT INTO {$questionsTable} (pageid, question) VALUES ((SELECT pageid FROM {$pagesTable} WHERE path = '{$page}' LIMIT 1), '{$question}');";
mysqli_query($conn, $sql);
include 'util/dbclose.php';