<?php 
/** 
 * Server-side rendering of the `core/post-content` block. 
 * 
 * @package WordPress 
 */ 
 
/** 
 * Renders the `core/post-content` block on the server. 
 * 
 * @since 5.8.0 
 * 
 * @param array    $attributes Block attributes. 
 * @param string   $content    Block default content. 
 * @param WP_Block $block      Block instance. 
 * @return string Returns the filtered post content of the current post. 
 */ 
function render_block_core_post_content( $attributes, $content, $block ) { 
    static $seen_ids = array(); 
 
    if ( ! isset( $block->context['postId'] ) ) { 
        return ''; 
    } 
 
    $post_id = $block->context['postId']; 
 
    if ( isset( $seen_ids[ $post_id ] ) ) { 
        // WP_DEBUG_DISPLAY must only be honored when WP_DEBUG. This precedent 
        // is set in `wp_debug_mode()`. 
        $is_debug = WP_DEBUG && WP_DEBUG_DISPLAY; 
 
        return $is_debug ? 
            // translators: Visible only in the front end, this warning takes the place of a faulty block. 
            __( '[block rendering halted]' ) : 
            ''; 
    } 
 
    $seen_ids[ $post_id ] = true; 
 
    // When inside the main loop, we want to use queried object 
    // so that `the_preview` for the current post can apply. 
    // We force this behavior by omitting the third argument (post ID) from the `get_the_content`. 
    $content = get_the_content(); 
    // Check for nextpage to display page links for paginated posts. 
    if ( has_block( 'core/nextpage' ) ) { 
        $content .= wp_link_pages( array( 'echo' => 0 ) ); 
    } 
 
    /** This filter is documented in wp-includes/post-template.php */ 
    $content = apply_filters( 'the_content', str_replace( ']]>', ']]>', $content ) ); 
    unset( $seen_ids[ $post_id ] ); 
 
    if ( empty( $content ) ) { 
        return ''; 
    } 
 
    $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => 'entry-content' ) ); 
 
    return ( 
        '<div ' . $wrapper_attributes . '>' . 
            $content . 
        '</div>' 
    ); 
} 
 
/** 
 * Registers the `core/post-content` block on the server. 
 * 
 * @since 5.8.0 
 */ 
function register_block_core_post_content() { 
    register_block_type_from_metadata( 
        __DIR__ . '/post-content', 
        array( 
            'render_callback' => 'render_block_core_post_content', 
        ) 
    ); 
} 
add_action( 'init', 'register_block_core_post_content' ); 
 
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