(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.
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).
Example #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";
?>
The above example will output:
3, 0 2, 3 1024, 0