WP_Block::render( array $options = array() )

Generates the render output for the block.


Parameters

$options

(array) (Optional) Optional options object.

  • 'dynamic'
    (bool) Defaults to 'true'. Optionally set to false to avoid using the block's render_callback.

Default value: array()


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Return

(string) Rendered block output.


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Source

File: wp-includes/class-wp-block.php

	public function render( $options = array() ) {
		global $post;
		$options = wp_parse_args(
			$options,
			array(
				'dynamic' => true,
			)
		);

		$is_dynamic    = $options['dynamic'] && $this->name && null !== $this->block_type && $this->block_type->is_dynamic();
		$block_content = '';

		if ( ! $options['dynamic'] || empty( $this->block_type->skip_inner_blocks ) ) {
			$index = 0;

			foreach ( $this->inner_content as $chunk ) {
				if ( is_string( $chunk ) ) {
					$block_content .= $chunk;
				} else {
					$inner_block  = $this->inner_blocks[ $index ];
					$parent_block = $this;

					/** This filter is documented in wp-includes/blocks.php */
					$pre_render = apply_filters( 'pre_render_block', null, $inner_block->parsed_block, $parent_block );

					if ( ! is_null( $pre_render ) ) {
						$block_content .= $pre_render;
					} else {
						$source_block = $inner_block->parsed_block;

						/** This filter is documented in wp-includes/blocks.php */
						$inner_block->parsed_block = apply_filters( 'render_block_data', $inner_block->parsed_block, $source_block, $parent_block );

						/** This filter is documented in wp-includes/blocks.php */
						$inner_block->context = apply_filters( 'render_block_context', $inner_block->context, $inner_block->parsed_block, $parent_block );

						$block_content .= $inner_block->render();
					}

					$index++;
				}
			}
		}

		if ( $is_dynamic ) {
			$global_post = $post;
			$parent      = WP_Block_Supports::$block_to_render;

			WP_Block_Supports::$block_to_render = $this->parsed_block;

			$block_content = (string) call_user_func( $this->block_type->render_callback, $this->attributes, $block_content, $this );

			WP_Block_Supports::$block_to_render = $parent;

			$post = $global_post;
		}

		if ( ! empty( $this->block_type->script ) ) {
			wp_enqueue_script( $this->block_type->script );
		}

		if ( ! empty( $this->block_type->view_script ) && empty( $this->block_type->render_callback ) ) {
			wp_enqueue_script( $this->block_type->view_script );
		}

		if ( ! empty( $this->block_type->style ) ) {
			wp_enqueue_style( $this->block_type->style );
		}

		/**
		 * Filters the content of a single block.
		 *
		 * @since 5.0.0
		 * @since 5.9.0 The `$instance` parameter was added.
		 *
		 * @param string   $block_content The block content about to be appended.
		 * @param array    $block         The full block, including name and attributes.
		 * @param WP_Block $instance      The block instance.
		 */
		$block_content = apply_filters( 'render_block', $block_content, $this->parsed_block, $this );

		/**
		 * Filters the content of a single block.
		 *
		 * The dynamic portion of the hook name, `$name`, refers to
		 * the block name, e.g. "core/paragraph".
		 *
		 * @since 5.7.0
		 * @since 5.9.0 The `$instance` parameter was added.
		 *
		 * @param string   $block_content The block content about to be appended.
		 * @param array    $block         The full block, including name and attributes.
		 * @param WP_Block $instance      The block instance.
		 */
		$block_content = apply_filters( "render_block_{$this->name}", $block_content, $this->parsed_block, $this );

		return $block_content;
	}


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Changelog

Changelog
Version Description
5.5.0 Introduced.

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