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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 |
|---|---|
| 474 | */ |
| 475 | function wp_registration_url() { |
| 476 | /** |
| 477 | * Filters the user registration URL. |
| 478 | * |
| 479 | * @since 3.6.0 |
| 480 | * |
| 481 | * @param string $register The user registration URL. |
| 482 | */ |
| 483 | return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) ); |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Provides a simple login form for use anywhere within WordPress. |
| 488 | * |
| 489 | * The login form HTML is echoed by default. Pass a false value for `$echo` to return it instead. |
| 490 | * |
| 491 | * @since 3.0.0 |
| 492 | * |