safechat/html/messagetable.php

<?php
mysqli_report(MYSQLI_REPORT_STRICT);
try {
  $db = new mysqli("mysql", "root", $_SERVER["MYSQL_ENV_MYSQL_ROOT_PASSWORD"]);
  $db->query("create database if not exists safechat;");
  $db->select_db("safechat");
  $db->query('create table if not exists message (id int primary key not null auto_increment, time timestamp default current_timestamp, user varchar(50) not null, msg longtext not null);');
  $db->query('set global max_allowed_packet=1000000000');
  $db->query('set global net_buffer_length=1000000');
} catch (Exception $e) {
  echo json_encode(null);
}
?>