PHP-按月份和年份对数组排序
这是我的阵列:PHP-按月份和年份对数组排序,php,arrays,sorting,date,Php,Arrays,Sorting,Date,这是我的阵列: $ar = array( 'Jan-2016' => 1, 'Feb-2016' => 2, 'Mar-2016' => 3, 'Apr-2016' => 4, 'May-2016' => 4, 'Jun-2016' => 4, 'Jul-2016' => 4, 'Aug-2016' => 4, 'Sep-2016' => 4, 'Oct-2016' => 4, 'Nov-2016' =>
$ar = array(
'Jan-2016' => 1,
'Feb-2016' => 2,
'Mar-2016' => 3,
'Apr-2016' => 4,
'May-2016' => 4,
'Jun-2016' => 4,
'Jul-2016' => 4,
'Aug-2016' => 4,
'Sep-2016' => 4,
'Oct-2016' => 4,
'Nov-2016' => 4,
'Dec-2016' => 4,
'Jan-2015' => 1,
'Mar-2015' => 1);
我想按月份和年份对该数组进行排序。我尝试了以下代码:
ksort($ar);
但我不能得到我预期的结果
我需要的结果如下:
$ar = array(
'Jan-2015' => 1,
'Mar-2015' => 1,
'Jan-2016' => 1,
'Feb-2016' => 2,
'Mar-2016' => 3,
'Apr-2016' => 4,
'May-2016' => 4,
'Jun-2016' => 4,
'Jul-2016' => 4,
'Aug-2016' => 4,
'Sep-2016' => 4,
'Oct-2016' => 4,
'Nov-2016' => 4,
'Dec-2016' => 4);
uksort是正确使用的函数:
uksort($ar, function($a1, $a2) {
$time1 = strtotime($a1);
$time2 = strtotime($a2);
return $time1 - $time2;
});
print_r($ar);
uksort是正确使用的函数:
uksort($ar, function($a1, $a2) {
$time1 = strtotime($a1);
$time2 = strtotime($a2);
return $time1 - $time2;
});
print_r($ar);
补充:排序顺序
$sortOrder = true; // ASC
$sortOrder = false; // DESC
uksort($array, function($a, $b) use($sortOrder) {
$timeA = strtotime($a);
$timeB = strtotime($b);
return $sortOrder ? ($timeA - $timeB) : ($timeB - $timeA);
});
补充:排序顺序
$sortOrder = true; // ASC
$sortOrder = false; // DESC
uksort($array, function($a, $b) use($sortOrder) {
$timeA = strtotime($a);
$timeB = strtotime($b);
return $sortOrder ? ($timeA - $timeB) : ($timeB - $timeA);
});
uksort是您的选项-使用用户定义的比较函数按键对数组进行排序。您能提供代码吗?uksort是您的选项-使用用户定义的比较函数按键对数组进行排序。您能提供代码吗?返回$time1-$time2更简单。@u\u mulder well没有太大变化,但你是对的return$time1-$time2要简单得多。@u\u mulder well变化不大,但你是对的