render_block_core_latest_posts( array $attributes ): string

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$attributesarray

The block attributes.

Return value

string

Returns the post content with latest posts added.

Performance profile

How much work a call to render_block_core_latest_posts() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via get_post().

Scaling

Scales with input

The body loops, so the work grows with what you pass in.

Instructions

382

Executed per call on PHP 8.5. The body compiles to 382.

Plugin surface

1 hook

Third-party callbacks on 'excerpt_length' run inside this call, and their cost is not bounded by anything here.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksapply_filters()called directly
• querycontent queryget_post()one call below render_block_core_latest_posts()
• optionoption read or writeget_option()one call below render_block_core_latest_posts()

Further down the call graph this can also reach cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

Hooks and filters fired · 1

One hook fires while render_block_core_latest_posts() runs, in this order:

1. 1
   apply_filters( excerpt_length )filterline 167 (+122 into the body)

   Filters the maximum number of words in a post excerpt.

Uses · 24

• add_filter()Adds a callback function to a filter hook.
• update_post_thumbnail_cache()Updates cache for thumbnails in the current loop.
• esc_url()Checks and cleans a URL.
• get_permalink()Retrieves the full permalink for the current post or post ID.
• get_the_title()Retrieves the post title.
• __()Retrieves the translation of $text.
• has_post_thumbnail()Determines whether a post has an image attached.
• get_the_post_thumbnail()Retrieves the post thumbnail.
• esc_attr()Escaping for HTML attributes.
• get_the_author_meta()Retrieves the requested data of the author of the current post.
• get_the_date()Retrieves the date of the post.
• get_the_excerpt()Retrieves the post excerpt.

Source code

View on Trac ↗View on GitHub ↗

45function render_block_core_latest_posts( $attributes ) {46	global $post, $block_core_latest_posts_excerpt_length;47	static $rendering_stack = array();48 49	$args = array(50		'posts_per_page'      => $attributes['postsToShow'],51		'post_status'         => 'publish',52		'order'               => $attributes['order'],53		'orderby'             => $attributes['orderBy'],54		'ignore_sticky_posts' => true,55		'no_found_rows'       => true,56	);57 58	$block_core_latest_posts_excerpt_length = $attributes['excerptLength'];59	add_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );60 61	if ( ! empty( $attributes['categories'] ) ) {62		$args['category__in'] = array_column( $attributes['categories'], 'id' );63	}64	if ( isset( $attributes['selectedAuthor'] ) ) {65		$args['author'] = $attributes['selectedAuthor'];66	}67 68	$query = new WP_Query( $args );69 70	if ( isset( $attributes['displayFeaturedImage'] ) && $attributes['displayFeaturedImage'] ) {71		update_post_thumbnail_cache( $query );72	}73 74	$list_items_markup = '';75	// Snapshot the current global post so it can be restored after the loop.76	// We use have_posts()/the_post() rather than foreach so that setup_postdata()77	// is called for each post, establishing the correct global context for78	// do_blocks() and other filters that run during full-content rendering.79	$previous_post = $post ?? null;80 81	while ( $query->have_posts() ) {82		$query->the_post();83		$post_link = esc_url( get_permalink() );84		$title     = get_the_title();85 86		if ( ! $title ) {87			$title = __( '(no title)' );88		}89 90		$list_items_markup .= '<li>';91 92		if ( $attributes['displayFeaturedImage'] && has_post_thumbnail() ) {93			$image_style = '';94			if ( isset( $attributes['featuredImageSizeWidth'] ) ) {95				$image_style .= sprintf( 'max-width:%spx;', $attributes['featuredImageSizeWidth'] );96			}97			if ( isset( $attributes['featuredImageSizeHeight'] ) ) {98				$image_style .= sprintf( 'max-height:%spx;', $attributes['featuredImageSizeHeight'] );99			}100 101			$image_classes = 'wp-block-latest-posts__featured-image';102			if ( isset( $attributes['featuredImageAlign'] ) ) {103				$image_classes .= ' align' . $attributes['featuredImageAlign'];104			}105 106			$featured_image = get_the_post_thumbnail(107				null,108				$attributes['featuredImageSizeSlug'],109				array(110					'style' => esc_attr( $image_style ),111				)112			);113			if ( $attributes['addLinkToFeaturedImage'] ) {114				$featured_image = sprintf(115					'<a href="%1$s" aria-label="%2$s">%3$s</a>',116					esc_url( $post_link ),117					esc_attr( $title ),118					$featured_image119				);120			}121			$list_items_markup .= sprintf(122				'<div class="%1$s">%2$s</div>',123				esc_attr( $image_classes ),124				$featured_image

Changelog

Introduced in 5.0.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/blocks/latest-posts.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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