Apostrophe Problem content-single.php

<?php
/**
 * Template part for displaying posts
 *
 * @link https://developer.wordpress.org/themes/basics/template-hierarchy/
 *
 * @package WordPress
 * @subpackage Twenty_Twenty_One
 * @since Twenty Twenty-One 1.0
 */

?>

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

    <div class="entry-content">
        <p>
        <?php
            $extraPostID = 1;
            $str = html_entity_decode( get_the_title( $extraPostID ), ENT_QUOTES, 'UTF-8' );
            $extraContent = get_page_by_title($str, OBJECT, 'post');
            var_dump($extraContent);
        ?>
        </p>
    </div><!-- .entry-content -->

    <footer class="entry-footer default-max-width">
        <?php twenty_twenty_one_entry_meta_footer(); ?>
    </footer><!-- .entry-footer -->

    <?php if ( ! is_singular( 'attachment' ) ) : ?>
        <?php get_template_part( 'template-parts/post/author-bio' ); ?>
    <?php endif; ?>

</article><!-- #post-<?php the_ID(); ?> -->