This example depends on two keys/values instead of just one unlike many other examples I've seen in Stack-overflow. Apart from sorting array below by primary key, I also would like to sort it by age key so that I can achieve EXPECTED RESULT below. How should I modify CODE below to achieve it? CURRENT RESULT has A-6-6 key misplaced because my code doesn't handle it yet.
ORIGINAL ARRAY
$myarray = [
'Z-9-0' => [
'primary' => true,
'age' => 55
],
'C-7-1' => [
'primary' => false,
'age' => 60
],
'K-1-9' => [
'primary' => true,
'age' => 60
],
'C-2-1' => [
'primary' => false,
'age' => 40
],
'F-6-6' => [
'primary' => true,
'age' => 60
],
'A-6-6' => [
'primary' => true,
'age' => 30
]
];
EXPECTED RESULT
(
[F-6-6] => Array
(
[primary] => 1
[age] => 60
)
[K-1-9] => Array
(
[primary] => 1
[age] => 60
)
[Z-9-0] => Array
(
[primary] => 1
[age] => 55
)
[A-6-6] => Array
(
[primary] => 1
[age] => 30
)
[C-7-1] => Array
(
[primary] =>
[age] => 60
)
[C-2-1] => Array
(
[primary] =>
[age] => 40
)
)
CODE
uasort($myarray, function($a, $b) {
return strcmp($b['primary'], $a['primary']);
});
print_r($org);
CURRENT RESULT
As you can see, A-6-6 is not in right place compared to expected result above. So the bigger the age the higher place it should appear.
(
[A-6-6] => Array
(
[primary] => 1
[age] => 30
)
[F-6-6] => Array
(
[primary] => 1
[age] => 60
)
[K-1-9] => Array
(
[primary] => 1
[age] => 60
)
[Z-9-0] => Array
(
[primary] => 1
[age] => 55
)
[C-7-1] => Array
(
[primary] =>
[age] => 60
)
[C-2-1] => Array
(
[primary] =>
[age] => 40
)
)
