thomasbeutel/tb_add_og_description.php

## tb_add_og_description.php
<?php
/**
 * Plugin Name: OG Metadata (Gallery Description + Featured Image)
 * Description: This plugin automatically adds both og:description (using the "gallery_description" meta field first) and og:image (using the featured image if available) to all WordPress pages and posts. You can check the OG data at https://www.opengraph.xyz/
 * Version:     1.4
 * Author:      Thomas Beutel
 * License:     GPL2
 */

/**
 * DISCLAIMER: This script is provided "as is" without any warranties,
 * expressed or implied, including but not limited to the implied
 * warranties of merchantability or fitness for a particular purpose.
 * Use at your own risk. The author assumes no responsibility for
 * errors, omissions, or damages resulting from its use.
 */

/**
 * add_og_metadata
 *
 * Adds Open Graph meta tags for description and featured image (if available) for the Made by Minimal theme: https://madebyminimal.com/made
 * 1) Uses the "gallery_description" post meta field first for og:description.
 * 2) Falls back to excerpt or post content if no gallery_description is found.
 * 3) Uses the featured image (thumbnail) or _og_image_id for og:image if set.
 *
 * @return void
 */
function add_og_metadata() {
    if ( is_singular() ) {
        global $post;

        // Prepare the og:description
        $post_description = '';
        $gallery_description = get_post_meta( $post->ID, 'gallery_description', true );

        if ( ! empty( $gallery_description ) ) {
            $post_description = wp_trim_words( strip_tags( $gallery_description ), 30 );
        } elseif ( has_excerpt( $post->ID ) ) {
            $post_description = strip_tags( get_the_excerpt( $post->ID ) );
        } else {
            $post_content     = strip_tags( apply_filters( 'the_content', $post->post_content ) );
            $post_description = wp_trim_words( $post_content, 30 );
        }

        // Output the og:description tag
        echo "\n".'<meta property="og:description" content="' . esc_attr( $post_description ) . '" />' . "\n";

        // Prepare and output the og:image
        $featured_image_url = get_the_post_thumbnail_url( $post->ID, 'full' );
        if ( empty( $featured_image_url ) ) {
            // Use og_image as fallback if featured image is not available
            $og_image_id = get_post_meta( $post->ID, '_og_image_id', true );
            if ( $og_image_id ) {
                $featured_image_url = wp_get_attachment_url( $og_image_id );
            }
        }
        if ( ! empty( $featured_image_url ) ) {
            echo '<meta property="og:image" content="' . esc_url( $featured_image_url ) . '" />' . "\n";
        }
    }
}

// Hook into wp_head to include the meta tags in the <head> section.
add_action( 'wp_head', 'add_og_metadata' );
	<?php
	/**
	* Plugin Name: OG Metadata (Gallery Description + Featured Image)
	* Description: This plugin automatically adds both og:description (using the "gallery_description" meta field first) and og:image (using the featured image if available) to all WordPress pages and posts. You can check the OG data at https://www.opengraph.xyz/
	* Version: 1.4
	* Author: Thomas Beutel
	* License: GPL2
	*/

	/**
	* DISCLAIMER: This script is provided "as is" without any warranties,
	* expressed or implied, including but not limited to the implied
	* warranties of merchantability or fitness for a particular purpose.
	* Use at your own risk. The author assumes no responsibility for
	* errors, omissions, or damages resulting from its use.
	*/

	/**
	* add_og_metadata
	*
	* Adds Open Graph meta tags for description and featured image (if available) for the Made by Minimal theme: https://madebyminimal.com/made
	* 1) Uses the "gallery_description" post meta field first for og:description.
	* 2) Falls back to excerpt or post content if no gallery_description is found.
	* 3) Uses the featured image (thumbnail) or _og_image_id for og:image if set.
	*
	* @return void
	*/
	function add_og_metadata() {
	if ( is_singular() ) {
	global $post;

	// Prepare the og:description
	$post_description = '';
	$gallery_description = get_post_meta( $post->ID, 'gallery_description', true );

	if ( ! empty( $gallery_description ) ) {
	$post_description = wp_trim_words( strip_tags( $gallery_description ), 30 );
	} elseif ( has_excerpt( $post->ID ) ) {
	$post_description = strip_tags( get_the_excerpt( $post->ID ) );
	} else {
	$post_content = strip_tags( apply_filters( 'the_content', $post->post_content ) );
	$post_description = wp_trim_words( $post_content, 30 );
	}

	// Output the og:description tag
	echo "\n".'<meta property="og:description" content="' . esc_attr( $post_description ) . '" />' . "\n";

	// Prepare and output the og:image
	$featured_image_url = get_the_post_thumbnail_url( $post->ID, 'full' );
	if ( empty( $featured_image_url ) ) {
	// Use og_image as fallback if featured image is not available
	$og_image_id = get_post_meta( $post->ID, '_og_image_id', true );
	if ( $og_image_id ) {
	$featured_image_url = wp_get_attachment_url( $og_image_id );
	}
	}
	if ( ! empty( $featured_image_url ) ) {
	echo '<meta property="og:image" content="' . esc_url( $featured_image_url ) . '" />' . "\n";
	}
	}
	}

	// Hook into wp_head to include the meta tags in the <head> section.
	add_action( 'wp_head', 'add_og_metadata' );
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