Группируйте строки двумерного массива по значениям года и месяца из столбца год-месяц, чтобы создать подмассивы в каждой ⇐ Php

[Anonymous]

У меня есть основной массив $rr.
Array
(
[0] => Array
(
[id] => 162
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-01
)

[1] => Array
(
[id] => 144
[content] => Kingpabel ATN - Copy (5) - Copy 20150623111159
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623111159.pdf
[date_upload] => 2015-05
)

[2] => Array
(
[id] => 145
[content] => Kingpabel ATN - Copy (6) - Copy 20150623111159
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (6) - Copy 20150623111159.pdf
[date_upload] => 2015-05
)

[3] => Array
(
[id] => 129
[content] => Kingpabel ATN - Copy (6) - Copy 20150623094147
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (6) - Copy 20150623094147.pdf
[date_upload] => 2015-06
)

[4] => Array
(
[id] => 165
[content] => Kingpabel .ATN. - Copy. - Copy (2) 20150624110802
[page_name] => all_users
[type] => all_users
[image] => Kingpabel .ATN. - Copy. - Copy (2) 20150624110802.pdf
[date_upload] => 2016-01
)

)


Я использую этот код для создания массива года и месяца:
while($rr=mysql_fetch_array($r))
{
//$dall[]=$rr;
$dt=explode("-",$rr['date_upload']);
if(count($year)>0)
{
if(array_key_exists($dt[0],$year))
{
if(!in_array($dt[1],$year[$dt[0]]))
{
array_push( $year[$dt[0]], $dt[1]);

}
}
else
{
$ye=$dt[0];
$year[$ye]= array($dt[1]);

}
}
else
{
$ye=$dt[0];
$year[$ye]=array($dt[1]);
}

}


Я получил этот результат из приведенного выше кода:
Array
(
[2015] => Array
(
[0] => 01
[1] => 05
[2] => 06
)

[2016] => Array
(
[0] => 01
)

)

Я пытаюсь создать такой массив в соответствии с полем date_upload в массиве $rr выше.
какие изменения необходимы в приведенном выше коде для создания массива, как показано ниже?
Array
(
[2015] => Array
(
[01] => array(
[0]=>array(

[id] => 162
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-01
)
)
[05] => array(
[0]=>array(

[id] => 144
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-05
)
[1]=>array(
[id] => 145
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-05
)

)
[06] => array(
[0]=>array(

[id] => 129
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-06
)

)
)

[2016] => Array
(
[01] => array(
[0]=>array(

[id] => 165
[content] => Kingpabel ATN - Copy (5) - Copy 20150623113618
[page_name] => all_users
[type] => all_users
[image] => Kingpabel ATN - Copy (5) - Copy 20150623113618.pdf
[date_upload] => 2015-05
)

)
)

)



Подробнее здесь: https://stackoverflow.com/questions/310 ... h-column-t