sermon/api.php

<?php

$database = new SQLite3('outchat.db');

$action = $_GET['action'];

if ($action === 'getMessages') {
    $timestamp = $database->escapeString(htmlspecialchars($_GET['timestamp']));
    $timestamp = ($timestamp == 0) ? strtotime('-6 hours') : $timestamp;

    $statement = $database->prepare('SELECT * FROM messages WHERE timestamp > :timestamp');
    $statement->bindValue('timestamp', $timestamp);
    $results = $statement->execute();

    $messageArray = [];
    while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
        $row['datetime'] = date('d/m H:i', $row['timestamp']);

        $image_search = preg_match('/(http|https):\/\/[^ ]+(\.gif|\.jpg|\.jpeg|\.png)/', $row['text'], $out);

        if ($image_search > 0) {
            $row['text_processed'] = str_replace($out[0], '<p><img src="' . $out[0] . '" /></p>', $row['text']);
        } else {
            $row['text_processed'] = $row['text'];
        }

        $messageArray[] = $row;
    }
    echo json_encode($messageArray);
}

if ($action === 'createMessage') {
    $timestamp = time();
    $name = $database->escapeString(htmlspecialchars($_POST['name']));
    $text = $database->escapeString(htmlspecialchars($_POST['text']));

    $statement = $database->prepare('INSERT INTO messages (name, text, timestamp) VALUES (:name, :text, :timestamp)');
    $statement->bindValue(':name', $name, SQLITE3_TEXT);
    $statement->bindValue(':text', $text, SQLITE3_TEXT);
    $statement->bindValue(':timestamp', $timestamp, SQLITE3_INTEGER);
    $statement->execute();
}
?>