PHP 获取一周的时间

$date = array(
    'Monday'    =>    array(date('Y-m-d H:i:s',strtotime("Monday")),date('Y-m-d H:i:s',strtotime("Monday 23:59:59"))),
    'Tuesday'    =>    array(date('Y-m-d H:i:s',strtotime("Tuesday")),date('Y-m-d H:i:s',strtotime("Tuesday 23:59:59"))),
    'Wednesday'    =>    array(date('Y-m-d H:i:s',strtotime("Wednesday")),date('Y-m-d H:i:s',strtotime("Wednesday 23:59:59"))),
    'Thursday'    =>    array(date('Y-m-d H:i:s',strtotime("Thursday")),date('Y-m-d H:i:s',strtotime("Thursday 23:59:59"))),
    'Friday'    =>    array(date('Y-m-d H:i:s',strtotime("Friday")),date('Y-m-d H:i:s',strtotime("Friday 23:59:59"))),
    'Saturday'    =>    array(date('Y-m-d H:i:s',strtotime("Saturday")),date('Y-m-d H:i:s',strtotime("Saturday 23:59:59"))),
    'Sunday'    =>    array(date('Y-m-d H:i:s',strtotime("Sunday")),date('Y-m-d H:i:s',strtotime("Sunday 23:59:59"))),
);
var_dump($date);