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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 30 | $stylesheet_dir_uri = get_stylesheet_directory_uri(); |
| 31 | $dir = get_stylesheet_directory(); |
| 32 | $locale = get_locale(); |
| 33 | if ( file_exists("$dir/$locale.css") ) |
| 34 | $stylesheet_uri = "$stylesheet_dir_uri/$locale.css"; |
| 35 | elseif ( !empty($wp_locale->text_direction) && file_exists("$dir/{$wp_locale->text_direction}.css") ) |
| 36 | $stylesheet_uri = "$stylesheet_dir_uri/{$wp_locale->text_direction}.css"; |
| 37 | else |
| 38 | $stylesheet_uri = ''; |
| 39 | return apply_filters('locale_stylesheet_uri', $stylesheet_uri, $stylesheet_dir_uri); |
| 40 | } |
| 41 | |
| 42 | function get_template() { |
| 43 | return apply_filters('template', get_option('template')); |
| 44 | } |
| 45 | |
| 46 | function get_template_directory() { |
| 47 | $template = get_template(); |
| 48 | $template_dir = get_theme_root() . "/$template"; |