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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 |
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434 | * @since 2.0.0 |
435 | */ |
436 | $GLOBALS['wp_roles'] = new WP_Roles(); |
437 |
|
438 | /** |
439 | * Fires before the theme is loaded. |
440 | * |
441 | * @since 2.6.0 |
442 | */ |
443 | do_action( 'setup_theme' ); |
444 |
|
445 | // Define the template related constants. |
446 | wp_templating_constants(); |
447 |
|
448 | // Load the default text localization domain. |
449 | load_default_textdomain(); |
450 |
|
451 | $locale = get_locale(); |
452 | $locale_file = WP_LANG_DIR . "/$locale.php"; |