(PHP 4 >= 4.0.4, PHP 5)
gmp_sqrtrem — Square root with remainder
Calculate the square root of a number, with remainder.
The number being square rooted.
可以是一个 GMP 数据 resouce，或一个可以转换为数值的字符串。
Returns array where first element is the integer square root of a and the second is the remainder (i.e., the difference between a and the first element squared).
Example #1 gmp_sqrtrem() example 以上例程会输出：
<?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($sqrt1rem) . "
";
echo gmp_strval($sqrt2) . ", " . gmp_strval($sqrt2rem) . "
";
echo gmp_strval($sqrt3) . ", " . gmp_strval($sqrt3rem) . "
";
?>
3, 0
2, 3
1024, 0