func_num_args

Function • Return type changed in PHP 8.0

Returns the number of arguments passed to the function.

PHP 5

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

PHP 8.6

`func_num_args` Function synopsis

func_num_args(): int

Parameters

func_num_args does not take any parameters.

Return value

Typeint

Returns the number of arguments passed into the current user-defined function.

Changes to the `func_num_args` Function

PHP 8.0

Return type added: int

- func_num_args()
+ func_num_args(): int

`func_num_args` Function Availability

PHP Version	Availability
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