is_integer

Function • Params and return types changed in PHP 8.0

Alias of is_int.

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

is_integer Function synopsis

is_integer(mixed $value): bool

Parameters

$value

Typemixed

Return value

Typebool

Changes to the is_integer 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_integer($var)
+ is_integer(mixed $value): bool

is_integer 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 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