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<?php namespace Yoast\WP\SEO\Generators\Schema; use Yoast\WP\SEO\Config\Schema_IDs; /** * Returns ImageObject schema data. */ class Main_Image extends Abstract_Schema_Piece { /** * Determines whether or not a piece should be added to the graph. * * @return bool */ public function is_needed() { return true; } /** * Adds a main image for the current URL to the schema if there is one. * * This can be either the featured image or the first image in the content of the page. * * @return false|array Image Schema. */ public function generate() { $image_id = $this->context->canonical . Schema_IDs::PRIMARY_IMAGE_HASH; // The featured image. if ( $this->context->main_image_id ) { $generated_schema = $this->helpers->schema->image->generate_from_attachment_id( $image_id, $this->context->main_image_id ); $this->context->main_image_url = $generated_schema['url']; return $generated_schema; } // The first image in the content. if ( $this->context->main_image_url ) { return $this->helpers->schema->image->generate_from_url( $image_id, $this->context->main_image_url ); } return false; } }