我在wordpress上创建了滑块, 然后发布了缩略图。
我试图将活动类添加到循环中的第一个项目, 但循环在所有项目中显示该类。
我该如何解决?
这是我的循环:
<div class="carousel-inner" role="listbox">
<?php
$c = 0;
$class = '';
query_posts('category_name=slider&showposts=3');
if ( have_posts() ) : while ( have_posts() ) : the_post();
$c++;
$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'thumbnail' );
$url = $thumb['0'];
if ( $c == 1 ) $class .= ' active';
?>
<div class="item <?php echo $class; ?>">
<img src="<?php echo $url; ?>" class="img-responsive" alt="...">
<div class="carousel-caption">
<h2><?php the_content() ?></h2>
</div>
</div>
<?php
endwhile;endif;
wp_reset_query();
?>
</div>
http://pastebin.com/R5XA3ik9
#1
试试这个
if ( $c == 1 )
$class = ' active';
else
$class='';
OR
仅一行
$class = ($c == 1) ? 'active' : '';
#2
另一个答案是正确的,
你可以使用以下代码使代码更好
$class = ($c == 1) ? 'active' : '';
#3
$ class变量仍然具有第一个”回合”中的值。 (此外, 由于你正在使用。=, 它将变为活动状态…第n次)你需要添加else语句以删除旧值。
if ( $c == 1 ) $class = ' active';
else $active = '';
#4
请尝试一下。
<div class="carousel-inner" role="listbox">
<?php
$c = 0;
$class = '';
query_posts('category_name=slider&showposts=3');
if ( have_posts() ) : while ( have_posts() ) : the_post();
$c++;
$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'thumbnail' );
$url = $thumb['0'];
if ( $c == 1 ) $class .= ' active';
else $class = '';
?>
<div class="item <?php echo $class; ?>">
<img src="<?php echo $url; ?>" class="img-responsive" alt="...">
<div class="carousel-caption">
<h2><?php the_content() ?></h2>
</div>
</div>
<?php
endwhile;endif;
wp_reset_query();
?>
</div>
#5
请尝试这个
`
<?php
$c = 0;
$class = '';
query_posts('category_name=slider&showposts=3');
if ( have_posts() ) : while ( have_posts() ) : the_post();
$c++;
$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'thumbnail' );
$url = $thumb['0'];
$class = ($c == 1) ? 'active' : '';
?>
<div class="item <?php echo $class; ?>">
<img src="<?php echo $url; ?>" class="img-responsive" alt="...">
<div class="carousel-caption">
<h2><?php the_content() ?></h2>
</div>
</div>
<?php
endwhile;endif;
wp_reset_query();
?>
`
#6
尝试这个
<div class="carousel-inner" role="listbox">
<?php
$c = 0;
query_posts('category_name=slider&showposts=3');
if ( have_posts() ) : while ( have_posts() ) : the_post();
$ class =”; $ c ++;
$thumb = wp_get_attachment_image_src( get_post_thumbnail_id($post->ID), 'thumbnail' );
$url = $thumb['0'];
if ( $c == 1 ) $class .= ' active';
?>
<div class="item <?php echo $class; ?>">
<img src="<?php echo $url; ?>" class="img-responsive" alt="...">
<div class="carousel-caption">
<h2><?php the_content() ?></h2>
</div>
</div>
<?php
endwhile;endif;
wp_reset_query();
?>
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