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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 |
|---|---|
| 78 | |
| 79 | /** |
| 80 | * Filters the title tag content for login page. |
| 81 | * |
| 82 | * @since 4.9.0 |
| 83 | * |
| 84 | * @param string $login_title The page title, with extra context added. |
| 85 | * @param string $title The original page title. |
| 86 | */ |
| 87 | $login_title = apply_filters( 'login_title', $login_title, $title ); |
| 88 | |
| 89 | ?><!DOCTYPE html> |
| 90 | <html <?php language_attributes(); ?>> |
| 91 | <head> |
| 92 | <meta http-equiv="Content-Type" content="<?php bloginfo( 'html_type' ); ?>; charset=<?php bloginfo( 'charset' ); ?>" /> |
| 93 | <title><?php echo $login_title; ?></title> |
| 94 | <?php |
| 95 | |
| 96 | wp_enqueue_style( 'login' ); |