wpseo_schema_(identifier) хук-фильтр . Yoast 1.0

Filter: 'wpseo_schema_<identifier>' - Allows changing graph piece output. This filter can be called with either an identifier or a block type (see add_schema_blocks_graph_pieces()).

Использование

add_filter( 'wpseo_schema_(identifier)', 'filter_function_name_3147', 10, 4 );
function filter_function_name_3147( $graph_piece, $context, $graph_piece_generator, $graph_piece_generators ){
	// filter...

	return $graph_piece;
}

$graph_piece(массив)

The graph piece to filter.

$context(Meta_Tags_Context)

A value object with context variables.

$graph_piece_generator(Abstract_Schema_Piece)

A value object with context variables.

$graph_piece_generators(Abstract_Schema_Piece[])

A value object with context variables.

Где вызывается хук

$graph_piece = \apply_filters( 'wpseo_schema_' . $identifier, $graph_piece, $context, $graph_piece_generator, $graph_piece_generators );

Где используется хук в ядре Yoast SEO

\add_filter( 'wpseo_schema_webpage', [ $this, 'protected_webpage_schema' ], 1 );