PHP Interview Questions and answers» sort archives – interview questions and answers

sorting arrays

Bart — Tue, 16 Mar 2010 00:54:39 +0000

Both sort() and asort() is used to sort values in ascending order.To sort them in descending order what are the functions that we can use?

rsort() – Where it resets key associations as well.
arsort() – Where it sorts in descending order, while keeping the key associations as well.

Array sorting

Bart — Tue, 16 Mar 2010 00:44:51 +0000

What is the difference between sort() and asort()?

The main difference is that sort() will sort an array without concerning it’s key associations while asort() will maintain it’s key association as well.

Sorting arrays

Bart — Tue, 16 Mar 2010 00:38:23 +0000

What is the best way to sort an array by maintaining it’s key associations as well?

$array = array(‘a’=>’foo’,'b’=>’bar’,'c’=>’baz’);
asort($array);
print_r($array);

Array
(
[b] => bar
=> baz
[a] => foo
)