WP_REST_Server::embed_links( array $data, bool|string[] $embed = true ): array

Source

protected function embed_links( $data, $embed = true ) {	if ( empty( $data['_links'] ) ) {	return $data;	}	$embedded = array();	foreach ( $data['_links'] as $rel => $links ) {	/* * If a list of relations was specified, and the link relation * is not in the list of allowed relations, don't process the link. */	if ( is_array( $embed ) && ! in_array( $rel, $embed, true ) ) {	continue;	}	$embeds = array();	foreach ( $links as $item ) {	// Determine if the link is embeddable.	if ( empty( $item['embeddable'] ) ) {	// Ensure we keep the same order.	$embeds[] = array();	continue;	}	if ( ! array_key_exists( $item['href'], $this->embed_cache ) ) {	// Run through our internal routing and serve.	$request = WP_REST_Request::from_url( $item['href'] );	if ( ! $request ) {	$embeds[] = array();	continue;	}	// Embedded resources get passed context=embed.	if ( empty( $request['context'] ) ) {	$request['context'] = 'embed';	}	if ( empty( $request['per_page'] ) ) {	$matched = $this->match_request_to_handler( $request );	if ( ! is_wp_error( $matched ) && isset( $matched[1]['args']['per_page']['maximum'] ) ) {	$request['per_page'] = (int) $matched[1]['args']['per_page']['maximum'];	}	}	$response = $this->dispatch( $request );	/** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */	$response = apply_filters( 'rest_post_dispatch', rest_ensure_response( $response ), $this, $request );	$this->embed_cache[ $item['href'] ] = $this->response_to_data( $response, false );	}	$embeds[] = $this->embed_cache[ $item['href'] ];	}	// Determine if any real links were found.	$has_links = count( array_filter( $embeds ) );	if ( $has_links ) {	$embedded[ $rel ] = $embeds;	}	}	if ( ! empty( $embedded ) ) {	$data['_embedded'] = $embedded;	}	return $data; } 

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