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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 |
|---|---|
| 477 | /** |
| 478 | * Filters the default login form output arguments. |
| 479 | * |
| 480 | * @since 3.0.0 |
| 481 | * |
| 482 | * @see wp_login_form() |
| 483 | * |
| 484 | * @param array $defaults An array of default login form arguments. |
| 485 | */ |
| 486 | $args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) ); |
| 487 | |
| 488 | /** |
| 489 | * Filters content to display at the top of the login form. |
| 490 | * |
| 491 | * The filter evaluates just following the opening form tag element. |
| 492 | * |
| 493 | * @since 3.0.0 |
| 494 | * |
| 495 | * @param string $content Content to display. Default empty. |