Using WordPress ‘enable_loading_advanced_cache_dropin’ PHP filter

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The enable_loading_advanced_cache_dropin WordPress PHP filter allows you to control the loading of the advanced-cache.php drop-in file.

Usage

add_filter( 'enable_loading_advanced_cache_dropin', 'your_custom_function' );

function your_custom_function( $enable_advanced_cache ) {
    // your custom code here
    return $enable_advanced_cache;
}

Parameters

  • $enable_advanced_cache (bool): Whether to enable loading advanced-cache.php (if present). Default is true.

More information

See WordPress Developer Resources: enable_loading_advanced_cache_dropin

Examples

Disable advanced-cache.php loading

Prevent the advanced-cache.php file from loading.

add_filter( 'enable_loading_advanced_cache_dropin', '__return_false' );

Enable advanced-cache.php loading only on specific pages

Allow the advanced-cache.php file to load only on specific pages by checking the current page slug.

add_filter( 'enable_loading_advanced_cache_dropin', 'load_advanced_cache_on_specific_pages' );

function load_advanced_cache_on_specific_pages( $enable_advanced_cache ) {
    $allowed_pages = array( 'about-us', 'contact' );
    if ( in_array( get_post_field( 'post_name', get_post() ), $allowed_pages ) ) {
        return true;
    }
    return false;
}

Enable advanced-cache.php loading for logged-in users

Allow the advanced-cache.php file to load only for logged-in users.

add_filter( 'enable_loading_advanced_cache_dropin', 'load_advanced_cache_for_logged_in_users' );

function load_advanced_cache_for_logged_in_users( $enable_advanced_cache ) {
    if ( is_user_logged_in() ) {
        return true;
    }
    return false;
}

Enable advanced-cache.php loading for a specific user role

Allow the advanced-cache.php file to load only for users with a specific role, such as ‘administrator’.

add_filter( 'enable_loading_advanced_cache_dropin', 'load_advanced_cache_for_administrators' );

function load_advanced_cache_for_administrators( $enable_advanced_cache ) {
    if ( current_user_can( 'administrator' ) ) {
        return true;
    }
    return false;
}

Disable advanced-cache.php loading on mobile devices

Prevent the advanced-cache.php file from loading on mobile devices using the wp_is_mobile() function.

add_filter( 'enable_loading_advanced_cache_dropin', 'disable_advanced_cache_on_mobile' );

function disable_advanced_cache_on_mobile( $enable_advanced_cache ) {
    if ( wp_is_mobile() ) {
        return false;
    }
    return true;
}