I have the following array:
Array ( [0] => Array
( [name] => Jonah
[age] => 27 )
[1] => Array
( [name] => Bianca
[age] => 32 )
)
Is it possible to sort the sub-array values in [age] into some sort of order, such as lowest to highest or vice versa?
You can do this using usort:
usort($arr, function($a, $b)
{
return $a['age'] - $b['age']; // sorts lowest to highest
});
Swap $a and $b in the function to reverse the ordering.
I think this should be possible with bool usort ( array &$array , callback $cmp_function )
http://php.net/manual/en/function.usort.php
Just define a callback that sorts by the [age] key of the value.
This will work:
$ages = array();
foreach ($array as $value) {
$ages[] = $value;
}
array_multisort($values, SORT_ASC, $array);
Any way is good, but this is the "PHP way":
array_multisort() can be used to sort several arrays at once, or a multi-dimensional array by one or more dimensions.
