PHP MySQL 在表上的几周之间添加一个空的原始数据

Question

Hi i have a list of dates which fetched from mysql. and shows on a table like this

04-03-2013  
05-03-2013  
16-03-2013  
18-03-2013  
20-03-2013
01-04-2013
04-04-2013
05-04-2013
06-04-2013

i need to show a empty row between weeks on my table

ex

04-03-2013  
05-03-2013
--------------- 
16-03-2013  
18-03-2013  
20-03-2013
---------------
01-04-2013
04-04-2013
---------------
05-04-2013
06-04-2013
---------------

i tried some codes with PHP but no luck, any one know how to do this kind of thing. thank you

Answer 1

打印时计算该特定日期的周并将其存储在数组中。对于下一行，使用in_arry()将数组中的值与计算出的周进行比较，如果它存在，则仅打印该值，如果其中没有值数组将值推入数组，然后打印行并打印值。

Answer 2

$fetched = array("04-03-2013", "05-03-2013", "16-03-2013",);
$i=0;

while (true) {

if ($i>count($fetched)-1) { break; }
$ThisDate = $fetched[$i]; $i++;
$DateObj = new Datetime($thisDate);
$thisWeek = $DateObj->format("W");
if (isset($lastWeek) && $lastWeek!=$thisWeek) { echo "----- -----<br />"; }
echo $ThisDate . "<br />";
$lastWeek = $thisWeek;

}

or ....

$fetched = array("04-03-2013", "05-03-2013", "16-03-2013",);

foreach ($fetched as $f) {

$DateObj = new Datetime($f);
$thisWeek = $DateObj->format("W");
if (isset($lastWeek) && $lastWeek!=$thisWeek) { echo "-----<br />"; }
echo $ThisDate . "<br />";
$lastWeek = $thisWeek;

}