在foreach字符串中添加css类

Question

我有以下代码在wordpress模板中显示相关项目,但我想添加一个类,每个第二项附加一个css类right,我需要修改什么来实现这一点？

  <?php $rel = $related->show(get_the_ID(), true);
   foreach ($rel as $r) :
   echo '<div class=related-item><a href='.get_permalink($r->ID).'>'.'<div class=page-related-title>'.$r->post_title.'</div>'.get_the_post_thumbnail($r->ID, array(50,50)).'</a></div>';
   endforeach;?>

虽然这是与Wordpress相关的,但我认为它与一般的PHP编码更相关所以在这里进行psoting而不是在WPSE.

Answer 1

试试这个

<?php $rel = $related->show(get_the_ID(), true);
 $count = 0;
foreach ($rel as $r) {
 $class= ($count%2 == 0)?"right":"";

 echo '<div class="related-item '.$class.'"><a href='.get_permalink($r->ID).'>'.'<div class=page-related-title>'.$r->post_title.'</div>'.get_the_post_thumbnail($r->ID, array(50,50)).'</a></div>';
$count++;
}?>