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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 |
|---|---|
| 364 | */ |
| 365 | function wp_registration_url() { |
| 366 | /** |
| 367 | * Filter the user registration URL. |
| 368 | * |
| 369 | * @since 3.6.0 |
| 370 | * |
| 371 | * @param string $register The user registration URL. |
| 372 | */ |
| 373 | return apply_filters( 'register_url', site_url( 'wp-login.php?action=register', 'login' ) ); |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * Provides a simple login form for use anywhere within WordPress. By default, it echoes |
| 378 | * the HTML immediately. Pass array('echo'=>false) to return the string instead. |
| 379 | * |
| 380 | * @since 3.0.0 |
| 381 | * |
| 382 | * @param array $args Configuration options to modify the form output. |