WP_Query::generate_postdata( WP_Post|object|int $post ): array|false

4904	public function generate_postdata( $post ) {4905 4906		if ( ! ( $post instanceof WP_Post ) ) {4907			$post = get_post( $post );4908		}4909 4910		if ( ! $post ) {4911			return false;4912		}4913 4914		$id = (int) $post->ID;4915 4916		$authordata = get_userdata( $post->post_author );4917 4918		$currentday   = false;4919		$currentmonth = false;4920 4921		$post_date = $post->post_date;4922		if ( ! empty( $post_date ) && '0000-00-00 00:00:00' !== $post_date ) {4923			// Avoid using mysql2date for performance reasons.4924			$currentmonth = substr( $post_date, 5, 2 );4925			$day          = substr( $post_date, 8, 2 );4926			$year         = substr( $post_date, 2, 2 );4927 4928			$currentday = sprintf( '%s.%s.%s', $day, $currentmonth, $year );4929		}4930 4931		$numpages  = 1;4932		$multipage = 0;4933		$page      = $this->get( 'page' );4934		if ( ! $page ) {4935			$page = 1;4936		}4937 4938		/*4939		 * Force full post content when viewing the permalink for the $post,4940		 * or when on an RSS feed. Otherwise respect the 'more' tag.4941		 */4942		if ( get_queried_object_id() === $post->ID && ( $this->is_page() || $this->is_single() ) ) {4943			$more = 1;4944		} elseif ( $this->is_feed() ) {4945			$more = 1;4946		} else {4947			$more = 0;4948		}4949 4950		$content = $post->post_content;4951		if ( str_contains( $content, '<!--nextpage-->' ) ) {4952			$content = str_replace( "\n<!--nextpage-->\n", '<!--nextpage-->', $content );4953			$content = str_replace( "\n<!--nextpage-->", '<!--nextpage-->', $content );4954			$content = str_replace( "<!--nextpage-->\n", '<!--nextpage-->', $content );4955 4956			// Remove the nextpage block delimiters, to avoid invalid block structures in the split content.4957			$content = str_replace( '<!-- wp:nextpage -->', '', $content );4958			$content = str_replace( '<!-- /wp:nextpage -->', '', $content );4959 4960			// Ignore nextpage at the beginning of the content.4961			if ( str_starts_with( $content, '<!--nextpage-->' ) ) {4962				$content = substr( $content, 15 );4963			}4964 4965			$pages = explode( '<!--nextpage-->', $content );4966		} else {4967			$pages = array( $post->post_content );4968		}4969 4970		/**4971		 * Filters the "pages" derived from splitting the post content.4972		 *4973		 * "Pages" are determined by splitting the post content based on the presence4974		 * of `<!-- nextpage -->` tags.4975		 *4976		 * @since 4.4.04977		 *4978		 * @param string[] $pages Array of "pages" from the post content split by `<!-- nextpage -->` tags.4979		 * @param WP_Post  $post  Current post object.4980		 */4981		$pages = apply_filters( 'content_pagination', $pages, $post );4982 4983		$numpages = count( $pages );