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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 |
|---|---|
| 1252 | update_option('template_root', get_raw_theme_root($template, true)); |
| 1253 | update_option('stylesheet_root', get_raw_theme_root($stylesheet, true)); |
| 1254 | } |
| 1255 | delete_option('current_theme'); |
| 1256 | $theme = get_current_theme(); |
| 1257 | if ( is_admin() && false === get_option( "theme_mods_$stylesheet" ) ) { |
| 1258 | $default_theme_mods = (array) get_option( "mods_$theme" ); |
| 1259 | add_option( "theme_mods_$stylesheet", $default_theme_mods ); |
| 1260 | } |
| 1261 | do_action('switch_theme', $theme); |
| 1262 | } |
| 1263 | |
| 1264 | /** |
| 1265 | * Checks that current theme files 'index.php' and 'style.css' exists. |
| 1266 | * |
| 1267 | * Does not check the default theme, which is the fallback and should always exist. |
| 1268 | * Will switch theme to the fallback theme if current theme does not validate. |
| 1269 | * You can use the 'validate_current_theme' filter to return FALSE to |
| 1270 | * disable this functionality. |