is_countable

Function • Params and return types changed in PHP 8.0

Verify that the contents of a variable is a countable value.

PHP 5
PHP 7.0-7.2
PHP 7.3
Added
PHP 7.4
PHP 8.0
Improved
PHP 8.1
PHP 8.2
PHP 8.3
PHP 8.4
PHP 8.5

is_countable Function synopsis

is_countable(mixed $value): bool

Parameters

$value

Typemixed

The value to check

Return value

Typebool

Returns true if $value is countable, false otherwise.

Changes to the is_countable Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $var to $value
  • Parameter type added for parameter #1 ($value): mixed
- is_countable($var)
+ is_countable(mixed $value): bool

PHP 7.3

  • Function added

is_countable Function Availability

PHP VersionAvailability
PHP 8.5Future Release Yes
PHP 8.4Upcoming Release Yes
PHP 8.3Supported (Latest) Yes
PHP 8.2Supported Yes
PHP 8.1Security-Fixes Only Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported No
PHP 7.1Unsupported No
PHP 7.0Unsupported No
PHP 5.6Unsupported No
PHP 5.5Unsupported No
PHP 5.4Unsupported No
PHP 5.3Unsupported No