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$error = TRUE;if (SQL_LAYER == "mysql" || SQL_LAYER == "mysql4"){    echo "Check 1<br/>";    $sql_error = $db->sql_error($result);    if ($sql_error["code"] == 1114)    {        $result = $db->sql_query('SHOW TABLE STATUS LIKE "'.SESSIONS_TABLE.'"');        $row = $db->sql_fetchrow($result);        if ($row["Type"] == "HEAP")        {            echo "check 2<br/>";            if ($row["Rows"] > 2500)            {                echo "check 3a<br/>";                $delete_order = (SQL_LAYER=="mysql4") ? " ORDER BY session_time ASC" : "";                $db->sql_query("DELETE QUICK FROM ".SESSIONS_TABLE."$delete_order LIMIT 50");            }            else            {                echo "check3b<br/>";                $db->sql_query("ALTER TABLE ".SESSIONS_TABLE." MAX_ROWS=".($row["Rows"]+50));            }            if ($db->sql_query($sql))            {                echo "final check<br/>;                $error = FALSE;            }        }    }}if ($error){    message_die(CRITICAL_ERROR, "Error creating new session", "", __LINE__, __FILE__, $sql);}