php 小代码（2）-----给定一个字符串时间得到其时间所在的当周的周一及周日时间

<?php
$strTime = '2015-06-28 19:20:58';
$middletime = strtotime($strTime);

$week = date('w',$middletime);
if ($week == 0) {
$week = 7;
}

$monday = date('Y-m-d', strtotime('+' . 1 - $week . ' days',$middletime)) . ' 00:00:00'; //星期一
$sunday = date('Y-m-d', strtotime('+' . 7 - $week . ' days',$middletime)) . ' 23:59:59'; //星期日

echo $monday.'<br/>';
echo $sunday;