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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 |
|---|---|
| 361 | function populate_options( array $options = array() ) { |
| 362 | global $wpdb, $wp_db_version, $wp_current_db_version; |
| 363 | |
| 364 | $guessurl = wp_guess_url(); |
| 365 | /** |
| 366 | * Fires before creating WordPress options and populating their default values. |
| 367 | * |
| 368 | * @since 2.6.0 |
| 369 | */ |
| 370 | do_action( 'populate_options' ); |
| 371 | |
| 372 | // If WP_DEFAULT_THEME doesn't exist, fall back to the latest core default theme. |
| 373 | $stylesheet = WP_DEFAULT_THEME; |
| 374 | $template = WP_DEFAULT_THEME; |
| 375 | $theme = wp_get_theme( WP_DEFAULT_THEME ); |
| 376 | if ( ! $theme->exists() ) { |
| 377 | $theme = WP_Theme::get_core_default_theme(); |
| 378 | } |
| 379 | |