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~