I have a 2D array in php which holds the date:
$cal[$year][$month] = $event;
Output of the array is:
Array ( [2012] => Array ( [6] => 10.92 [11] => 16.38 [8] => 1.3 [9] => 16.96 )
I would like to sort the array by year and month. How do I do this?
Thank you!
you should look to the array_multisort function, you can find informations here: http://php.net/manual/en/function.array-multisort.php
the second example is what you are looking for
According to your following array:
$cal[$year][$month] = $event;
and taking into account that $year and $month are both numeric (if not, just cast them).
For ordering both years and months in ASCENDING order, do:
ksort($cal); //sort years
foreach($cal as &$arr) {
ksort($arr); //sort months
}
if you want it in DESCENDING order, do:
krsort($cal); //sort years
foreach($cal as &$arr) {
krsort($arr); //sort months
}
you can interchange ksort() and krsort() in both examples if you want a mix sort, like years ASCENDING and months DESCENDING.
