(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_sqrtrem — Square root with remainder
Calculate the square root of a number, with remainder.
numThe number being square rooted.
GMP 对象、int 或 string，可以按照跟在 gmp_init() 中使用字符串并自动检测 base（即当 base 等于 0 时）相同的逻辑将其解释为数字。
Returns array where first element is the integer square root of
num and the second is the remainder
(i.e., the difference between num and the
first element squared).
示例 #1 gmp_sqrtrem() example
<?php
list($sqrt1, $sqrt1rem) = gmp_sqrtrem("9");
list($sqrt2, $sqrt2rem) = gmp_sqrtrem("7");
list($sqrt3, $sqrt3rem) = gmp_sqrtrem("1048576");
echo gmp_strval($sqrt1) . ", " . gmp_strval($sqrt1rem) . "\n";
echo gmp_strval($sqrt2) . ", " . gmp_strval($sqrt2rem) . "\n";
echo gmp_strval($sqrt3) . ", " . gmp_strval($sqrt3rem) . "\n";
?>以上示例会输出：
3, 0 2, 3 1024, 0