这是问题所在...我有一个看起来像这样的循环，从我的数据库中选择东西。
$query = "SELECT * FROM table WHERE publish <= CURDATE() AND active = 'Yes' AND (YEAR(begin) = YEAR(CURDATE()) OR YEAR(begin) = YEAR(CURDATE()) + 1) ORDER BY begin ASC";
$resultSet = mysql_query($query);
if (mysql_num_rows($resultSet))
{
$newsArray = array();
while ($newsResult = mysql_fetch_array($resultSet))
{
$newDate = $newsResult['begin'] ;
$timePeriod = date('F Y ',strtotime($newDate));
$timePeriodY = date('Y',strtotime($timePeriod));
$timePeriodM = date('F',strtotime($timePeriod));
if (!isset($newsArray[$timePeriod]))
{
$newsArray[$timePeriod] = array();
}
$newsArray[$timePeriod][] = $newsResult;
}
foreach ($newsArray as $timePeriod => $newsItems)
{
$timePeriodY = date('Y',strtotime($timePeriod));
if ($timePeriodY == $thisYear){
}
else if ($timePeriodY == $nextYear){
}
echo '<h2 class="year>'.$timePeriodY.'</h2>';
echo '<ul class="column">';
foreach ($newsArray as $timePeriod => $newsItems)
{
$timePeriodMonth = date('Y',strtotime($timePeriod));
if ($timePeriodY == $timePeriodMonth) {
$moSe = strftime('%B',strtotime($timePeriod));
$MonthSe = ucfirst($moSe);
$seMonth = str_replace($dateSearch,$dateReplace,date('F',strtotime($timePeriod)));
echo $seMonth;
foreach ($newsItems as $item)
{
$ad_event = date("Y-m-d",strtotime($item['event_end']));
$today = date("Y-m-d");
$dayMod = strftime('%e',strtotime($item['event_begin']));
$seDay = str_replace($dateSearch,$dateReplace,date('D',strtotime($item['event_begin'])));
echo '<a href="javascript:gotoDotBottom('.$item['event_id'].','''.$item['event_url'].''');" id="e'.$item['event_id'].'" class="eventLink '.$markedEvent.'" overhead="'.$item['event_title'].'" overdate="'.date("Y-m-d",strtotime($item['event_begin'])).'" overtext="'. strip_tags($showSum) .'">'.$seDay.' '.$dayMod.' - '.$item['event_title'].'</a>';
echo '</div>';
}
}
}
}
}
else
{
echo '';
}
此代码输出每行的数据，并将其分隔为年月日等。但是，有些数据是在同一天。这很好，但是当数据在同一天时，我想要一个变量，该变量仅包含同一天的最后一个项目。
前任。
.DB
PUBLISH ID NAME
2011-05-05 1 test 1
2011-05-05 2 test 2
2011-05-06 3 test 3
我想要的结果是这样的
结果
test 1 ID 1 PUBLISH 2011-05-05 VARIABLE 2 <<-- see the variable that comes from test 2 row
test 2 ID 2 PUBLISH 2011-05-05 VARIABLE 2
test 3 ID 3 PUBLISH 2011-05-06 VARIABLE 3
包含有关测试 2 的信息，因为测试 2 在测试 1 之后，并且它们都具有相同的日期。如果特定日期只有一个作为测试 2 和 3，只需回显与变量相同的 id。
有什么想法吗？请告诉我是否需要更:)解释这一点
非常感谢任何帮助！
按日期（开始）分组，因为您只希望在同一日期（开始）上记录 1 条记录，并且由于您希望在"开始"列上按 DSC 进行最新排序（我相信"开始"存储为日期时间，否则您需要在 table.ID 上安装 DSC）
$query = "SELECT *
FROM table
WHERE publish <= CURDATE()
AND active = 'Yes'
AND (YEAR(begin) = YEAR(CURDATE())
OR YEAR(begin) = YEAR(CURDATE()) + 1)
GROUP BY begin
ORDER BY begin DSC";