PHP: Sort array numerically descending

Question

this question looks like it should have a simple answer but google and the php manual are being no help to me, maybe I just don't understand what they are telling me.

I have an array example:

$outcomes_array = array(1,4,2,3,5);

It will always contain just numbers, how do I go about sorting this array so that it is always in descending order?

so output I want:

$outcomes_array[0] = 5
$outcomes_array[1] = 4
$outcomes_array[2] = 3

and so on...

Thanks :)

Solution 1

Use rsort().

Solution 2

rsort( $outcomes_array )

Note, it is not

$outcomes_array = rsort( $outcomes_array );

Solution 3

rsort( $outcomes_array );
print_r( $outcomes_array );

Solution 4

• rsort is just for a numeric array
• arsort is for an array with keys

Solution 5

As the default is SORT_REGULAR - compare items normally (don't change types) So the code should be:

$outcomes_array = array(1,4,2,3,5);
rsort( $outcomes_array, SORT_NUMERIC );//SORT_NUMERIC - compare items numerically
print_r( $outcomes_array );

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Comments

[George Reith]

Thanks I knew it must of been simple :P