Customizer Settings in Arrays

The get_theme_mod() function works the following:

  • It fetches the get_theme_mods() function under the hood.

  • This returns the following data

    $theme_slug = get_option( 'stylesheet' );
get_option( "theme_mods_{$theme_slug}" );

So in case you upgrade, write an upgrade function specific for that version of your plugin or theme, that uses one of the following, where the name is fetched via get_option( 'stylesheet' ); again:

  • delete_option( "mods_{$theme_name}" );
  • update_option( "theme_mods_{$theme_slug}", $mods );

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