{* @event backend_header *} {* $return[%app_id%]['header_top'] *} {if !empty($header_top)}{foreach $header_top as $_}{$_}{/foreach}{/if} {if !empty($include_wa_push)} {/if} {* @event backend_header *} {* $return[%app_id%]['header_bottom'] *} {if !empty($header_bottom)}{foreach $header_bottom as $_}{$_}{/foreach}{/if}