= 4.0.4, PHP 5, PHP 7, PHP 8)gmp_sqrt — Calculate square root說明gmp_sqrt(GMP|int|string $num): GMPCalculates square root of num. 參數(shù)numG">
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_sqrt — Calculate square root
The integer portion of the square root, as a GMP number.
示例 #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";
?>
以上例程會輸出:
3 2 1234567890