wp_login_errors filter-hook . WP 3.6.0

Filters the login page errors.

Usage

add_filter( 'wp_login_errors', 'filter_function_name_4601', 10, 2 );
function filter_function_name_4601( $errors, $redirect_to ){
	// filter...

	return $errors;
}

$errors(object)

WP Error object.

$redirect_to(string)

Redirect destination URL.

Where the hook is called

$errors = apply_filters( 'wp_login_errors', $errors, $redirect_to );

Where the hook is used (in WP core)