← All built-ins / krsort()
krsort()
krsort(array &$a): bool
Parameters
| Name | Type | Description |
|---|---|---|
| $a | array | map to sort by key (by reference) |
Return value
true; sorted descending by key.
Example
$m = ["b" => 2, "a" => 1];
krsort($m);
echo implode(",", array_keys($m));b,a