array_reverse

Function • Params and return types changed in PHP 8.0

Return an array with elements in reverse order.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

array_reverse Function synopsis

array_reverse(array $array, bool $preserve_keys = false): array

Parameters

$array

Typearray

The input array.

$preserve_keys

OptionalTypeboolDefault valuefalse

If set to true numeric keys are preserved. Non-numeric keys are not affected by this setting and will always be preserved.

Return value

Typearray

Returns the reversed array.

Changes to the array_reverse Function

PHP 8.0

  • Return type added: array
  • Parameter name of parameter #1 changed: $input to $array
  • Parameter type added for parameter #1 ($array): array
  • Parameter type added for parameter #2 ($preserve_keys): bool
  • Parameter default value added for position #2 ($preserve_keys): false
- array_reverse($input, $preserve_keys)
+ array_reverse(array $array, bool $preserve_keys = false): array

array_reverse Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes