php显示周一到周日

 
<ul>
    <?php
    $time = time();
    $week = date('w');
    $week_cn=array('周日','周一','周二','周三','周四','周五','周六');
    for($i=0;$i<7;$i++){
        $day = $time+$i*86400;
        ?>
        <li <?php if($i==0){?>class="current"<?php }?> date="<?php echo date('Y-m-d',$day)?>">
            <span><?php echo $week_cn[($week+$i)%7]?></span>
            <?php echo date('m-d',$day)?>
        </li>
    <?php }?>
</ul>