function is_db_connected()
{
global $_OPENDB_DB_CONNECTED;
if (!is_bool($_OPENDB_DB_CONNECTED)) {
$_OPENDB_DB_CONNECTED = init_db_connection() !== FALSE;
}
return $_OPENDB_DB_CONNECTED;
}
function mysqli_param_query($query, $params = false, $noFail = false)
{
global $dblink;
if (!$dblink) {
// We may need a reinit for e.g. session closure
init_db_connection();
}
if (!$params) {
return mysqli_query_check($query, $noFail);
}
foreach ($params as &$v) {
if (is_null($v)) {
$v = 'NULL';
} elseif (is_array($v)) {
$t = '';
foreach ($v as $v2) {
if ($t) {
$t .= ',';
}
$v2 = mysqli_real_escape_string($dblink, $v2);
if (!is_numeric($v2) || strlen(trim($v2)) > 0 && substr(trim($v2), 0, 1) == '0') {
$v2 = "'{$v2}'";
}
$t .= $v2;
}
$v = $t;
} else {
$v = mysqli_real_escape_string($dblink, $v);
if (!is_numeric($v) || strlen(trim($v)) > 1 && substr(trim($v), 0, 1) == '0') {
$v = "'{$v}'";
}
}
}
$sql_query = vsprintf(str_replace('?', '%s', $query), $params);
return mysqli_query_check($sql_query, $noFail);
}
function db_session_gc($maxlifetime)
{
// hack - it seems that the db gets closed before the session info is written
if (!db_ping()) {
init_db_connection();
}
$query = "DELETE FROM php_session " . " WHERE expiration < " . time() - $maxlifetime;
$result = db_query($query);
if ($result && db_affected_rows() > 0) {
return TRUE;
} else {
return FALSE;
}
}