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render_block_core_footnotes › WordPress Function

Since6.3.0
Deprecatedn/a
› render_block_core_footnotes ( $attributes, $content, $block )
Parameters: (3)
  • (array) $attributes Block attributes.
    Required: Yes
  • (string) $content Block default content.
    Required: Yes
  • (WP_Block) $block Block instance.
    Required: Yes
Returns:
  • (string) Returns the HTML representing the footnotes.
Defined at:
Codex:

Renders the `core/footnotes` block on the server.



Related Functions: register_block_core_footnotes, render_block_core_post_terms, render_block_core_loginout, render_block_core_file, render_block_core_pattern

Source 

function render_block_core_footnotes( $attributes, $content, $block ) {
	// Bail out early if the post ID is not set for some reason.
	if ( empty( $block->context['postId'] ) ) {
		return '';
	}

	if ( post_password_required( $block->context['postId'] ) ) {
		return;
	}

	$footnotes = get_post_meta( $block->context['postId'], 'footnotes', true );

	if ( ! $footnotes ) {
		return;
	}

	$footnotes = json_decode( $footnotes, true );

	if ( ! is_array( $footnotes ) || count( $footnotes ) === 0 ) {
		return '';
	}

	$wrapper_attributes = get_block_wrapper_attributes();
	$footnote_index     = 1;

	$block_content = '';

	foreach ( $footnotes as $footnote ) {
		// Translators: %d: Integer representing the number of return links on the page.
		$aria_label     = sprintf( __( 'Jump to footnote reference %1$d' ), $footnote_index );
		$block_content .= sprintf(
			'<li id="%1$s">%2$s <a href="#%1$s-link" aria-label="%3$s">↩︎</a></li>',
			$footnote['id'],
			$footnote['content'],
			$aria_label
		);
		++$footnote_index;
	}

	return sprintf(
		'<ol %1$s>%2$s</ol>',
		$wrapper_attributes,
		$block_content
	);
}