How to dynamically hide the Header using filters? SOLVED

I’m trying to hide the header “on call”. and I need help using the avia_header_class_filter. Would this be the correct filter to use? I’ve looked through some code and through the stored options int the options table for example:

post_id=5, meta_key=”header_transparency”, meta_value = “header_transparent header_hidden”

Here’s my logic:
When using my custom mobile app I am displaying some pages from the website that don’t need the header, BUT, when viewing the site regularly, with the mobile phone/desktop (ie: NOT using our mobile app) Things are as they should be. Make sense?
So I can pass a variable in the url to help achieve this and catch it in the child theme functions.php

Here is my code that is NOT working. Am I close? How can I achieve this? (I know wordpress and pass variables in urls in many projects. I just need help with the avia filter.)

URL – https://www.example.com/about-us/?show-header=no

//####### NECESSARY WORDPRESS FUNCTION TO USE A QUERY STRING VARIABLE
function add_custom_query_vars( $vars ) {
$vars[] = “show-header”;
return $vars;
}
add_filter( ‘query_vars’, ‘add_custom_query_vars’ );
$show-mobile-header = get_query_var( ‘show-header’, yes );

if ($show-mobile-header == ‘no’) {
add_filter(‘avia_header_class_filter’,’avia_hide_header’, 10, 1);
}

//###### Add new option for hiding header for mobile app display
function avia_hide_header($necessary) {
$necessary[‘header_transparency’] = ‘header_transparent header_hidden’;
return $necessary;
}

Thanks for looking at the code and any help anyone can give.

• This topic was modified 7 years, 6 months ago by brayne.