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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 |
|---|---|
| 417 | /** |
| 418 | * Filters the default login form output arguments. |
| 419 | * |
| 420 | * @since 3.0.0 |
| 421 | * |
| 422 | * @see wp_login_form() |
| 423 | * |
| 424 | * @param array $defaults An array of default login form arguments. |
| 425 | */ |
| 426 | $args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) ); |
| 427 | |
| 428 | /** |
| 429 | * Filters content to display at the top of the login form. |
| 430 | * |
| 431 | * The filter evaluates just following the opening form tag element. |
| 432 | * |
| 433 | * @since 3.0.0 |
| 434 | * |
| 435 | * @param string $content Content to display. Default empty. |