render_block_core_query_pagination_next( array $attributes, string $content, WP_Block $block ): 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

Block attributes.

$contentstring

Block default content.

$blockWP_Block

Block instance.

Return value

string

Returns the next posts link for the query pagination.

Performance profile

How much work a call to render_block_core_query_pagination_next() 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

Moderate

Reads stored settings via get_option(), cached per request but not free on a cold cache.

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

2

Executed per call on PHP 8.5. The body compiles to 171.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

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

What it touches

• hookthird-party callbacksapply_filters()one call below render_block_core_query_pagination_next()
• optionoption read or writeget_option()one call below render_block_core_query_pagination_next()

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

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost render_block_core_query_pagination_next() can have, taken from its control-flow graph on PHP 8.5.

Uses · 13

• get_block_wrapper_attributes()Generates a string of attributes by applying to the current block being rendered all of the features that the block supports.
• __()Retrieves the translation of $text.
• esc_html()Escaping for HTML blocks.
• get_query_pagination_arrow()Helper function that returns the proper pagination arrow HTML for `QueryPaginationNext` and `QueryPaginationPrevious` blocks based on the provided `paginationArrow` from `QueryPagination` context.
• add_filter()Adds a callback function to a filter hook.
• get_next_posts_link()Retrieves the next posts page link.
• remove_filter()Removes a callback function from a filter hook.
• build_query_vars_from_query_block()Helper function that constructs a WP_Query args array from a `Query` block properties.
• esc_url()Checks and cleans a URL.
• add_query_arg()Retrieves a modified URL query string.
• wp_reset_postdata()After looping through a separate query, this function restores the $post global to the current post in the main query.
• WP_Query::__construct()Constructor.

Source code

View on Trac ↗View on GitHub ↗

21function render_block_core_query_pagination_next( $attributes, $content, $block ) {22	$page_key            = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';23	$enhanced_pagination = (bool) ( $block->context['enhancedPagination'] ?? false );24	$page                = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];25	$max_page            = (int) ( $block->context['query']['pages'] ?? 0 );26 27	$wrapper_attributes = get_block_wrapper_attributes();28	$show_label         = (bool) ( $block->context['showLabel'] ?? true );29	$default_label      = __( 'Next Page' );30	$label_text         = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? esc_html( $attributes['label'] ) : $default_label;31	$label              = $show_label ? $label_text : '';32	$pagination_arrow   = get_query_pagination_arrow( $block, true );33 34	if ( ! $label ) {35		$wrapper_attributes .= ' aria-label="' . $label_text . '"';36	}37	if ( $pagination_arrow ) {38		$label .= $pagination_arrow;39	}40	$content = '';41 42	// Check if the pagination is for Query that inherits the global context.43	if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) {44		$filter_link_attributes = static function () use ( $wrapper_attributes ) {45			return $wrapper_attributes;46		};47		add_filter( 'next_posts_link_attributes', $filter_link_attributes );48		// Take into account if we have set a bigger `max page`49		// than what the query has.50		global $wp_query;51		if ( $max_page > $wp_query->max_num_pages ) {52			$max_page = $wp_query->max_num_pages;53		}54		$content = get_next_posts_link( $label, $max_page );55		remove_filter( 'next_posts_link_attributes', $filter_link_attributes );56	} elseif ( ! $max_page || $max_page > $page ) {57		$custom_query           = new WP_Query( build_query_vars_from_query_block( $block, $page ) );58		$custom_query_max_pages = (int) $custom_query->max_num_pages;59		if ( $custom_query_max_pages && $custom_query_max_pages !== $page ) {60			$content = sprintf(61				'<a href="%1$s" %2$s>%3$s</a>',62				esc_url( add_query_arg( $page_key, $page + 1 ) ),63				$wrapper_attributes,64				$label65			);66		}67		wp_reset_postdata(); // Restore original Post Data.68	}69 70	if ( $enhanced_pagination && isset( $content ) ) {71		$p = new WP_HTML_Tag_Processor( $content );72		if ( $p->next_tag(73			array(74				'tag_name'   => 'a',75				'class_name' => 'wp-block-query-pagination-next',76			)77		) ) {78			$p->set_attribute( 'data-wp-key', 'query-pagination-next' );79			$p->set_attribute( 'data-wp-on--click', 'core/query::actions.navigate' );80			$p->set_attribute( 'data-wp-on--mouseenter', 'core/query::actions.prefetch' );81			$p->set_attribute( 'data-wp-watch', 'core/query::callbacks.prefetch' );82			$content = $p->get_updated_html();83		}84	}85 86	return $content;87}

Changelog

Introduced in 5.8.0. 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/query-pagination-next.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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