Php Wordpress:Can'；t使用get_the_id（）获取文章标记中的URL；

我有这个标记

                    <article id="post-<?php the_ID(); ?>" <?php post_class($masonry_item_sizing); ?> style="background: url("<?php echo get_post_meta(get_the_ID(), 'sponsors_logo_file_url', true); ?>")">

                        <div class="inner-wrap animated">
                            <div class="post-content">
                                <img src="<?php echo get_post_meta(get_the_ID(), 'sponsors_logo_file_url', true); ?>">
                                    <p><?php the_title(); ?></p>
                                    <p><?php echo get_post_meta(get_the_ID(), 'event_location', true); ?></p>
                                    <p><?php echo get_post_meta(get_the_ID(), 'event_date_time', true); ?></p>
                                <div class="post-meta <?php echo $extra_class; ?>">


                     </div><!--/post-meta-->


                    </div>
                    </div>
                   </article>

”但不是图像的直接链接

为什么会发生这种情况？我如何解决

谢谢。
最好使用：

background-image: url() 

反而

background: url("")

最终代码：

<?php $bg = get_post_meta(get_the_ID(), 'sponsors_logo_file_url', true); ?><article id="post-<?php the_ID(); ?>" <?php post_class($masonry_item_sizing); ?> style="background-image: url(<?php echo $bg; ?>)">
<div class="inner-wrap animated">
    <div class="post-content">
        <img src="<?php echo $bg; ?>">
            <p><?php the_title(); ?></p>
            <p><?php echo get_post_meta(get_the_ID(), 'event_location', true); ?></p>
            <p><?php echo get_post_meta(get_the_ID(), 'event_date_time', true); ?></p>
        <div class="post-meta <?php echo $extra_class; ?>"></div><!--/post-meta-->
    </div>
</div>


background: url("")

<?php $bg = get_post_meta(get_the_ID(), 'sponsors_logo_file_url', true); ?><article id="post-<?php the_ID(); ?>" <?php post_class($masonry_item_sizing); ?> style="background-image: url(<?php echo $bg; ?>)">
<div class="inner-wrap animated">
    <div class="post-content">
        <img src="<?php echo $bg; ?>">
            <p><?php the_title(); ?></p>
            <p><?php echo get_post_meta(get_the_ID(), 'event_location', true); ?></p>
            <p><?php echo get_post_meta(get_the_ID(), 'event_date_time', true); ?></p>
        <div class="post-meta <?php echo $extra_class; ?>"></div><!--/post-meta-->
    </div>
</div>