Conditional Themes

A simple API to switch the themes on certain conditions.

Author:	Nashwan Doaqan (profile at wordpress.org)
WordPress version required:	3.4
WordPress version tested:	5.2.11
Plugin version:	0.6
Added to WordPress repository:	19-10-2013
Last updated:	19-07-2019 Warning! This plugin has not been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
Rating, %:	98
Rated by:	9
Plugin URI:	https://github.com/nash-ye/WP-Conditional-The...
Total downloads:	3 826
Active installs:	90+
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Conditional Themes is an API to switch the themes on certain conditions.

Usage

Write an another plugin file and use the Conditional Themes API as the example below:

add_action('plugins_loaded', 'my_conditional_themes_setup', 100);

function my_conditional_themes_setup()
{
    // Switch to Twenty Eleven theme if the visitor use Internet Explorer.
    Conditional_Themes_Manager::register('twentyeleven', function() {
        global $is_IE;
        return (bool) $is_IE;
    });

    // Switch to Twenty Thirteen theme if the user has administrator role.
    Conditional_Themes_Manager::register('twentythirteen', function() {
        return current_user_can('administrator');
    });

    // Switch to a custom theme if the visitor use a mobile device.
    Conditional_Themes_Manager::register('mobile', 'wp_is_mobile');
}

Another example, With enabling persistent mode.

add_action('plugins_loaded', 'my_conditional_themes_setup', 100);

function my_conditional_themes_setup()
{
    // Enable the switcher persistent mode.
    Conditional_Themes_Manager::set_option('persistent', true);

    // Switch to Twenty Sixteen theme when we being on 2016.
    Conditional_Themes_Manager::register('twentysixteen', function() {
        return (date('Y') == 2016);
    });

    // Switch to Twenty Fifteen theme when the site reaches 500 post.
    Conditional_Themes_Manager::register('twentyfifteen', function() {
        return ((int) wp_count_posts() > 500);
    });
}

Note: You can use Code Snippets plugin to add the code snippets to your site.

Contributing

Developers can contribute to the source code on the Github Repository.