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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 |
|---|---|
| 531 | /** |
| 532 | * Filters the default login form output arguments. |
| 533 | * |
| 534 | * @since 3.0.0 |
| 535 | * |
| 536 | * @see wp_login_form() |
| 537 | * |
| 538 | * @param array $defaults An array of default login form arguments. |
| 539 | */ |
| 540 | $args = wp_parse_args( $args, apply_filters( 'login_form_defaults', $defaults ) ); |
| 541 | |
| 542 | /** |
| 543 | * Filters content to display at the top of the login form. |
| 544 | * |
| 545 | * The filter evaluates just following the opening form tag element. |
| 546 | * |
| 547 | * @since 3.0.0 |
| 548 | * |
| 549 | * @param string $content Content to display. Default empty. |