Php/docs/function.gmp-sqrt
From Get docs
gmp_sqrt
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_sqrt — Calculate square root
Parameters
a- Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.
Return Values
The integer portion of the square root, as a GMP number.
Examples
Example #1 gmp_sqrt() example
<?php$sqrt1 = gmp_sqrt("9");$sqrt2 = gmp_sqrt("7");$sqrt3 = gmp_sqrt("1524157875019052100");echo gmp_strval($sqrt1) . "\n";echo gmp_strval($sqrt2) . "\n";echo gmp_strval($sqrt3) . "\n";?>
The above example will output:
3 2 1234567890
