我如何使这条PHP行更短？ [英] How can I make this PHP lines shorter?

问题描述

我有这个循环，它会计数输出：

I have this loop at the same it will count the output:

while ($wp_query->have_posts()) : $wp_query->the_post(); $current++; $current2++;

然后调用正确的html类，我需要这个设计：

Then to call the proper html class I need this for my design:

<div class="span4 <?php if($current == 0) { echo 'first'; } elseif($current == 1) { echo 'second'; } elseif($current == 2) { echo 'first'; } elseif($current == 3) { echo 'second'; } ?>" id="<? echo $current; ?>">

$ count code> $ count2 from 1.输出应该是这样的：if 0 = first，1 = second，2 = first，3 = second等等。我如何使这个表达式更短，无限数量的 $ count ？我希望我的问题很清楚。

The $count starts from 0 and $count2 from 1. The output should be like this: if 0=first, 1=second, 2=first, 3=second and so forth. How can I make this expression shorter with unlimited number of $count? I hope my question is clear. Thank you for those who will help me here.

推荐答案

如果我明白你在这里要求什么，我想你要交替

If I understand what you are asking here, I think you want to alternate your divs with'first' and 'second' classes?

因此，您可以使用％modulo运算子（请参阅 http://php.net/manual/en/internals2.opcodes.mod.php ）

As such, you can use the % modulo operator (see http://php.net/manual/en/internals2.opcodes.mod.php)

<div class="span4 <?php echo ($current % 2 === 0 ? 'first' : 'second'); ?>" id="<? echo $current; ?>">

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