function db_Close()
{
// Safely call this multiple times, only the first time has any effect //
if (!db_IsConnected()) {
global $db;
mysqli_close($db);
}
}
function db_Connect()
{
// Safely call this multiple times, only the first time has any effect //
if (!db_IsConnected()) {
global $db;
// Connect to the database //
$db = new mysqli(CMW_DB_HOST, CMW_DB_LOGIN, CMW_DB_PASSWORD, CMW_DB_NAME);
// http://php.net/manual/en/mysqli.quickstart.connections.php
if ($db->connect_errno) {
db_Log("Failed to connect to MySQL: (" . $db->connect_errno . ") " . $db->connect_error);
}
// Set character set to utf8mb4 mode (default is utf8mb3 (utf8). mb4 is required for Emoji)
$db->set_charset('utf8mb4');
// More info: http://stackoverflow.com/questions/279170/utf-8-all-the-way-through
}
}
function db_DatabaseExists($name)
{
if (db_IsConnected()) {
return mysqli_query($GLOBALS['db'], 'SHOW DATABASES LIKE "' . $GLOBALS['db']->real_escape_string($name) . '";')->num_rows == 1;
}
return false;
}
