这是我单曲的代码。php在我的主题文件夹中。我不知道怎么了。

<?php

get_header();

$show_default_title = get_post_meta( get_the_ID(), \'_et_pb_show_title\', true );

$is_page_builder_used = et_pb_is_pagebuilder_used( get_the_ID() );

?>

<div id="main-content">
    <?php
        if ( et_builder_is_product_tour_enabled() ):
            // load fullwidth page in Product Tour mode
            while ( have_posts() ): the_post(); ?>

                <article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
                    <div class="entry-content">
                    <?php
                        the_content();
                    ?>
                    </div> <!-- .entry-content -->

                </article> <!-- .et_pb_post -->

        <?php endwhile;
        else:
    ?>
    <div class="container">
        <div id="content-area" class="clearfix">
            <div id="left-area">
            <?php while ( have_posts() ) : the_post(); ?>
                <?php if (et_get_option(\'divi_integration_single_top\') <> \'\' && et_get_option(\'divi_integrate_singletop_enable\') == \'on\') echo(et_get_option(\'divi_integration_single_top\')); ?>
                <article id="post-<?php the_ID(); ?>" <?php post_class( \'et_pb_post\' ); ?>>
                    <?php if ( ( \'off\' !== $show_default_title && $is_page_builder_used ) || ! $is_page_builder_used ) { ?>
                        <div class="et_post_meta_wrapper">
                            <h1 class="entry-title"><?php the_title(); ?></h1>

                        <?php
                            if ( ! post_password_required() ) :

                                et_divi_post_meta();

                                $thumb = \'\';

                                $width = (int) apply_filters( \'et_pb_index_blog_image_width\', 1080 );

                                $height = (int) apply_filters( \'et_pb_index_blog_image_height\', 675 );
                                $classtext = \'et_featured_image\';
                                $titletext = get_the_title();
                                $thumbnail = get_thumbnail( $width, $height, $classtext, $titletext, $titletext, false, \'Blogimage\' );
                                $thumb = $thumbnail["thumb"];

                                $post_format = et_pb_post_format();

                                if ( \'video\' === $post_format && false !== ( $first_video = et_get_first_video() ) ) {
                                    printf(
                                        \'<div class="et_main_video_container">
                                            %1$s
                                        </div>\',
                                        $first_video
                                    );
                                } else if ( ! in_array( $post_format, array( \'gallery\', \'link\', \'quote\' ) ) && \'on\' === et_get_option( \'divi_thumbnails\', \'on\' ) && \'\' !== $thumb ) {
                                    print_thumbnail( $thumb, $thumbnail["use_timthumb"], $titletext, $width, $height );
                                } else if ( \'gallery\' === $post_format ) {
                                    et_pb_gallery_images();
                                }
                            ?>

                            <?php
                                $text_color_class = et_divi_get_post_text_color();

                                $inline_style = et_divi_get_post_bg_inline_style();

                                switch ( $post_format ) {
                                    case \'audio\' :
                                        $audio_player = et_pb_get_audio_player();

                                        if ( $audio_player ) {
                                            printf(
                                                \'<div class="et_audio_content%1$s"%2$s>
                                                    %3$s
                                                </div>\',
                                                esc_attr( $text_color_class ),
                                                $inline_style,
                                                $audio_player
                                            );
                                        }

                                        break;
                                    case \'quote\' :
                                        printf(
                                            \'<div class="et_quote_content%2$s"%3$s>
                                                %1$s
                                            </div> <!-- .et_quote_content -->\',
                                            et_get_blockquote_in_content(),
                                            esc_attr( $text_color_class ),
                                            $inline_style
                                        );

                                        break;
                                    case \'link\' :
                                        printf(
                                            \'<div class="et_link_content%3$s"%4$s>
                                                <a href="%1$s" class="et_link_main_url">%2$s</a>
                                            </div> <!-- .et_link_content -->\',
                                            esc_url( et_get_link_url() ),
                                            esc_html( et_get_link_url() ),
                                            esc_attr( $text_color_class ),
                                            $inline_style
                                        );

                                        break;
                                }

                            endif;
                        ?>
                    </div> <!-- .et_post_meta_wrapper -->
                <?php  } ?>

                    <div class="entry-content">
                    <?php
                        do_action( \'et_before_content\' );

                        the_content();

                        wp_link_pages( array( \'before\' => \'<div class="page-links">\' . esc_html__( \'Pages:\', \'Divi\' ), \'after\' => \'</div>\' ) );
                    ?>
                    </div> <!-- .entry-content -->
                    <div class="et_post_meta_wrapper">
                    <?php
                    if ( et_get_option(\'divi_468_enable\') == \'on\' ){
                        echo \'<div class="et-single-post-ad">\';
                        if ( et_get_option(\'divi_468_adsense\') <> \'\' ) echo( et_get_option(\'divi_468_adsense\') );
                        else { ?>
                            <a href="<?php echo esc_url(et_get_option(\'divi_468_url\')); ?>"><img src="<?php echo esc_attr(et_get_option(\'divi_468_image\')); ?>" alt="468" class="foursixeight" /></a>
                <?php   }
                        echo \'</div> <!-- .et-single-post-ad -->\';
                    }
                ?>

                    <?php if (et_get_option(\'divi_integration_single_bottom\') <> \'\' && et_get_option(\'divi_integrate_singlebottom_enable\') == \'on\') echo(et_get_option(\'divi_integration_single_bottom\')); ?>

                    <?php
                        if ( ( comments_open() || get_comments_number() ) && \'on\' == et_get_option( \'divi_show_postcomments\', \'on\' ) ) {
                            comments_template( \'\', true );
                        }
                    ?>
                    </div> <!-- .et_post_meta_wrapper -->

                     <?php $orig_post = $post;
global $post;
$categories = get_the_category($post->ID);
if ($categories) {
$category_ids = array();
foreach($categories as $individual_category) $category_ids[] = $individual_category->term_id;

$args=array(
\'category__in\' => $category_ids,
\'post__not_in\' => array($post->ID),
\'posts_per_page\'=> 3, // Number of related posts that will be shown.
\'caller_get_posts\'=>3
);

$my_query = new wp_query( $args );
if( $my_query->have_posts() ) {
echo \'<div id="related_posts"><h3>Related Posts</h3><ul>\';
while( $my_query->have_posts() ) {
$my_query->the_post();?>

<li><div class="relatedthumb"><a href="<? the_permalink()?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_post_thumbnail(); ?></a></div>
<div class="relatedcontent">
<h3><a href="<? the_permalink()?>" rel="bookmark" title="<?php the_title(); ?>"><?php the_title(); ?></a></h3>
<p><?php $content = get_the_content(); echo mb_strimwidth($content, 0, 100, \'...\');?></p>
<span class="author"><?php the_author(); ?></span>
</div>
</li>
<?
}
echo \'</ul><div class="clear"></div></div>\';
}
}
$post = $orig_post;
wp_reset_query(); ?>


                </article> <!-- .et_pb_post -->

            <?php endwhile; ?>




            </div> <!-- #left-area -->

            <?php get_sidebar(); ?>
        </div> <!-- #content-area -->
    </div> <!-- .container -->
    <?php //endif; ?>
</div> <!-- #main-content -->

<?php //get_footer(); ?>