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block_core_details_set_img_fetchpriority_low › WordPress Function

Seit7.0.0
Veraltetn/v
› block_core_details_set_img_fetchpriority_low ( $block_content, $block )
Parameter: (2)
  • (string) $block_content The block content.
    Erforderlich: Ja
  • (array) $block The full block, including name and attributes.
    Erforderlich: Ja
Gibt zurück:
  • (string) Modified HTML with fetchpriority="low" on all IMG tags when the showContent attribute is false.
Definiert in:
Codex:

Sets fetchpriority="low" on all IMG tags within the collapsed Details block.

Images in a collapsed Details block are hidden until the block is expanded, so they should not compete with any resources in the critical rendering path, such as the LCP element image.


Ähnliche Funktionen: block_core_navigation_set_overlay_image_fetch_priority, block_core_breadcrumbs_get_post_title, block_core_post_time_to_read_word_count, block_core_navigation_get_post_ids, block_core_breadcrumbs_get_term_ancestors_items

Quellcode 

function block_core_details_set_img_fetchpriority_low( $block_content, array $block ): string {
	if ( ! is_string( $block_content ) ) {
		return '';
	}

	// If the Details block is open by default, short-circuit to let core add fetchpriority=high if appropriate.
	if ( $block['attrs']['showContent'] ?? false ) {
		return $block_content;
	}

	$tags = new WP_HTML_Tag_Processor( $block_content );
	while ( $tags->next_tag( 'IMG' ) ) {
		$tags->set_attribute( 'fetchpriority', 'low' );
	}
	return $tags->get_updated_html();
}