You need white-space of some sort after the <?php tag. I'd recommend a newline. In fact, I'd recommend a bit of formatting as well to improve overall readability (and therefore maintainability).
<?php
$sys_config = array (
'shoplog_items_per_page' => 20,
'enchantlog_items_per_page' => 20,
'edit_items_per_page' => 20,
'edit_sms_per_page' => 20,
'user_search_per_page' => 20,
'users_list_per_page' => 20,
'logins_log_per_page' => 20,
'payment_log_per_page' => 20,
'invitation_log_per_page' => 20,
'faq_per_page' => 20,
'copyrights' => true
);
?>