floor

Function • Params and return types changed in PHP 8.0

Round fractions down.

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

floor Function synopsis

floor(int|float $num): float

Parameters

$num

Typeint|float

The numeric value to round

Return value

Typefloat

$num rounded to the next lowest integer. The return value of floor is still of type float.

Changes to the floor Function

PHP 8.0

  • Return type added: float
  • Parameter name of parameter #1 changed: $number to $num
  • Parameter type added for parameter #1 ($num): int|float
- floor($number)
+ floor(int|float $num): float

floor 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