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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 |
---|---|
419 | /** |
420 | * Fires before a specified login form action. |
421 | * |
422 | * The dynamic portion of the hook name, `$action`, refers to the action |
423 | * that brought the visitor to the login form. Actions include 'postpass', |
424 | * 'logout', 'lostpassword', etc. |
425 | * |
426 | * @since 2.8.0 |
427 | */ |
428 | do_action( "login_form_{$action}" ); |
429 |
|
430 | $http_post = ('POST' == $_SERVER['REQUEST_METHOD']); |
431 | $interim_login = isset($_REQUEST['interim-login']); |
432 |
|
433 | switch ($action) { |
434 |
|
435 | case 'postpass' : |
436 | if ( ! array_key_exists( 'post_password', $_POST ) ) { |
437 | wp_safe_redirect( wp_get_referer() ); |