PHP Conference China 2020

gmp_root

(PHP 5 >= 5.6.0, PHP 7)

gmp_rootTake the integer part of nth root

说明

gmp_root ( GMP $a , int $nth ) : GMP

Takes the nth root of a and returns the integer component of the result.

参数

a

PHP 5.5 之前为 GMP 数值资源,PHP 5.6 之后为 GMP 对象或数字,或可以转为数字的字符串。

nth

The positive root to take of a.

返回值

The integer component of the resultant root, as a GMP number.

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