PHP中余数、取余的妙用

<?php $ary=array（"name","egineer","sonny","tonny","pingk","apple","phone","clone","pink","colle"）;foreach（$ary as $key=>$value）{$key=$key+1;if（$key%2==1）{echo "<li>";}?> <span><?php echo $key.":". $value;?></span> <?php if（$key%2==0）{echo "</li>";}}; ?>

second_one

 <?php $ary=array（"name","egineer","sonny","tonny","pingk","apple","phone","clone","pink","colle"）;foreach（$ary as $key=>$value）{$key=$key;if（$key%3==0）{echo "<li>";}?> <span class="<?php echo（$key%3）; ?>span"><?php echo $key.":". $value;?></span> <?php if（$key%3==2）{echo "</li>";}}; ?>

大家可以运行以后查看结果并分析其巧妙之处~