我正在提取此特定帖子的所有附件，并将其显示在旋转木马中。问题是我需要给第一个项目一个活动类，这样引导旋转木马就可以工作了。
这是我的循环：
<?php foreach ( $attachments as $attachment ):
$description = $attachment->post_content;
echo \'<div class="item" data-description="\' . $description . \'">\';
echo wp_get_attachment_image($attachment->ID, \'large\');
echo \'</div>\';
endforeach;
?>
我尝试过：
<?php $isFirst = true; ?>
<?php foreach ( $attachments as $attachment ):
$description = $attachment->post_content;
echo \'<div class="item\' . $isFirst ? \' active\' : \'\' . \'" data-description="\' . $description . \'">\';
echo wp_get_attachment_image($attachment->ID, \'large\');
echo \'</div>\';
endforeach;
?>
最合适的回答,由SO网友:nkuldip 整理而成
Use below code
<?php
$isFirst = true;
$i=1;
foreach ( $attachments as $attachment ):
$description = $attachment->post_content;
if($i==1)
{
echo \'<div class="item\'.$isFirst.\'" data-description="\' . $description . \'">\';
echo wp_get_attachment_image($attachment->ID, \'large\');
echo \'</div>\';
}
else
{
echo \'<div class="item" data-description="\' . $description . \'">\';
echo wp_get_attachment_image($attachment->ID, \'large\');
echo \'</div>\';
}
$i++;
endforeach;
?>
