gmp_sqrt

Function • Params and return types changed in PHP 8.0

Calculate square root.

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

gmp_sqrt Function synopsis

gmp_sqrt(GMP|string|int $num): GMP

Parameters

$num

TypeGMP|string|int

Return value

TypeGMP

The integer portion of the square root, as a GMP number.

Changes to the gmp_sqrt Function

PHP 8.0

  • Return type added: GMP
  • Parameter name of parameter #1 changed: $a to $num
  • Parameter type added for parameter #1 ($num): GMP|string|int
- gmp_sqrt($a)
+ gmp_sqrt(GMP|string|int $num): GMP

gmp_sqrt 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