is_double

Function • Deprecated in PHP 8.6

Alias of is_float.

PHP 5

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

Deprecated

`is_double` Function synopsis

#[\Deprecated]
is_double(mixed $value): bool

Parameters

`$value`

Typemixed

Return value

Typebool

Changes to the `is_double` Function

PHP 8.6

Function deprecated

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_double($var)
+ is_double(mixed $value): bool

`is_double` Function Availability

PHP Version	Availability
PHP 8.6Upcoming Release	Yes Deprecated
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