我制作了一个混合网格，其中包含通过高级自定义字段填充的内容。一切正常，只是当我在WordPress admin中的ACF中设置了一个if/else语句来匹配我设置的复选框时，它会导致一个500错误。这是包含if/else语句的主要代码块：
<div class="watcheroos">
<?php
if(count($postslist) > 0) { ?>
<ul class="list-unstyled">
<?php
$clearfix_counter = 0;
foreach ($new_list as $index => $post) {
$bkg_id = get_post_thumbnail_id( $post->ID );
$bkg_src = wp_get_attachment_image_src( $bkg_id, \'medium\' );
$bkg_src_lg = wp_get_attachment_image_src( $bkg_id, \'large\' );
$network = get_post_meta($post->ID,\'network\',true);
$timeofday = get_post_meta($post->ID,\'time_of_day\',true);
$date = get_post_meta($post->ID,\'date\',true);
$producer = get_post_meta($post->ID,\'producer\',true);
if($index %8 == 0 || $index %9 == 0 || $index == 1 ) { ?>
<?php if ($index == 0) { ?>
<li class="watcheroo first <?php if($addClass){echo \'widewidth\'; } ?>" id="<?php echo sanitize_title($post->post_title); ?>">
<div class="content" <?php if($bkg_src_lg[0]){ echo \'style="background-image: url(\' . $bkg_src_lg[0] . \');"\'; } ?> >
</div>
<div class="featured-info">
<h4><?php echo $post->post_title; ?></h4>
<div class="info">
<div class="network"><strong>Network:</strong> <?php echo $network; ?></div>
<div class="timeofday"><strong>Time-of-day:</strong> <?php echo $timeofday; ?></div>
<div class="date"><strong>Date:</strong> <?php echo $date; ?></div>
<div class="producer"><strong>Produced by:</strong> <?php echo $producer; ?></div>
<?php echo apply_filters(\'the_content\', $post->post_content); ?>
<?php
$terms = get_the_terms($post->ID,\'watcheroo_production_credits\');
if($terms) {
echo \'<ul class="credits list-unstyled list-inline">\';
foreach ($terms as $term) {
echo \'<li>\' . $term->name . \'</li>\';
}
echo \'</ul>\';
}
?>
</div>
</div>
</li>
<?php } elseif(get_field(\'wide_box\')): { ?>
<li class="watcheroo wider" id="<?php echo sanitize_title($post->post_title); ?>">
<div class="content" <?php if($bkg_src_lg[0]){ echo \'style="background-image: url(\' . $bkg_src_lg[0] . \');"\'; } ?> >
<div class="overlay">
<div class="caption">
<h4><?php echo $post->post_title; ?></h4>
<div class="info">
<div class="network"><strong>Network:</strong> <?php echo $network; ?></div>
<div class="timeofday"><strong>Time-of-day:</strong> <?php echo $timeofday; ?></div>
<div class="date"><strong>Date:</strong> <?php echo $date; ?></div>
<div class="producer"><strong>Produced by:</strong> <?php echo $producer; ?></div>
<?php //echo apply_filters(\'the_content\', $post->post_content); ?>
</div>
</div>
</div>
</div>
<div class="expanded-content">
<?php echo apply_filters(\'the_content\', $post->post_content); ?>
<?php
$terms = get_the_terms($post->ID,\'watcheroo_production_credits\');
if($terms) {
echo \'<ul class="credits list-unstyled list-inline">\';
foreach ($terms as $term) {
echo \'<li>\' . $term->name . \'</li>\';
}
echo \'</ul>\';
}
?>
</div>
</li>
<?php }
} else { ?>
<li class="watcheroo <?php if($addClass){echo \'widewidth\'; } ?>" id="<?php echo sanitize_title($post->post_title); ?>">
<div class="content" <?php if($bkg_src[0]){ echo \'style="background-image: url(\' . $bkg_src[0] . \');"\'; } ?> >
<div class="overlay">
<div class="caption">
<h4><?php echo $post->post_title; ?></h4>
<div class="info">
<div class="network"><strong>Network:</strong> <?php echo $network; ?></div>
<div class="timeofday"><strong>Time-of-day:</strong> <?php echo $timeofday; ?></div>
<div class="date"><strong>Date:</strong> <?php echo $date; ?></div>
<div class="producer"><strong>Produced by:</strong> <?php echo $producer; ?></div>
<?php //echo apply_filters(\'the_content\', $post->post_content); ?>
</div>
</div>
</div>
</div>
<div class="expanded-content">
<?php echo apply_filters(\'the_content\', $post->post_content); ?>
<?php
$terms = get_the_terms($post->ID,\'watcheroo_production_credits\');
if($terms) {
echo \'<ul class="credits list-unstyled list-inline">\';
foreach ($terms as $term) {
echo \'<li>\' . $term->name . \'</li>\';
}
echo \'</ul>\';
}
?>
</div>
</li>
<?php }
} ?>
</ul>
<div class="clearfix"></div>
<?php } endif; ?>
</div>
</div>
<?php foreach ($postslist as $post) {
$network = get_post_meta($post->ID,\'network\',true);
$timeofday = get_post_meta($post->ID,\'time_of_day\',true);
$date = get_post_meta($post->ID,\'date\',true);
$producer = get_post_meta($post->ID,\'producer\',true);
$bkg_id = get_post_thumbnail_id( $post->ID );
$bkg_src = wp_get_attachment_image_src( $bkg_id, \'medium\' );
?>
<div id="<?php echo $post->ID . \'-\' . sanitize_title($post->post_title); ?>" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="modalwindow">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-body">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<?php if($bkg_src[0]){ ?><img class="alignleft" src="<?php echo $bkg_src[0]; ?>" /><?php } ?>
<h1 class="modal-title"><?php echo $post->post_title; ?></h1>
<div class="network"><strong>Network:</strong> <?php echo $network; ?></div>
<div class="timeofday"><strong>Time-of-day:</strong> <?php echo $timeofday; ?></div>
<div class="date"><strong>Date:</strong> <?php echo $date; ?></div>
<div class="producer"><strong>Produced by:</strong> <?php echo $producer; ?></div>
<?php echo apply_filters(\'the_content\', $post->post_content); ?>
<div class="clearfix"></div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
<?php } ?>
我是否放置endif；在错误的地点？我试着把它放在不同的地方，如果有任何帮助，我将不胜感激。
