Using WordPress ‘pre_cache_alloptions’ PHP filter

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The pre_cache_alloptions filter allows you to modify all WordPress options before they are cached, helping you to adjust settings as needed without directly altering the database.

Usage

add_filter('pre_cache_alloptions', 'your_custom_function');
function your_custom_function($alloptions) {
    // your custom code here
    return $alloptions;
}

Parameters

  • $alloptions (array): An array containing all WordPress options.

More information

See WordPress Developer Resources: pre_cache_alloptions

Examples

Update Site Title

Update the site title before it is cached.

add_filter('pre_cache_alloptions', 'update_site_title');
function update_site_title($alloptions) {
    $alloptions['blogname'] = 'New Site Title';
    return $alloptions;
}

Disable Comments

Disable comments site-wide before options are cached.

add_filter('pre_cache_alloptions', 'disable_comments');
function disable_comments($alloptions) {
    $alloptions['default_comment_status'] = 'closed';
    return $alloptions;
}

Change Admin Email

Change the admin email address before caching options.

add_filter('pre_cache_alloptions', 'change_admin_email');
function change_admin_email($alloptions) {
    $alloptions['admin_email'] = '[email protected]';
    return $alloptions;
}

Enable Debug Mode

Enable WordPress debug mode by modifying the cached options.

add_filter('pre_cache_alloptions', 'enable_debug_mode');
function enable_debug_mode($alloptions) {
    $alloptions['wp_debug'] = true;
    return $alloptions;
}

Change Timezone

Change the site’s timezone before caching options.

add_filter('pre_cache_alloptions', 'change_timezone');
function change_timezone($alloptions) {
    $alloptions['timezone_string'] = 'America/New_York';
    return $alloptions;
}