(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_invert — Inverse by modulo
Computes the inverse of num1 modulo
num2.
A GMP number on success or false if an inverse does not exist.
示例 #1 gmp_invert() example
<?php
echo gmp_invert("5", "10"); // no inverse, outputs nothing, result is FALSE
$invert = gmp_invert("5", "11");
echo gmp_strval($invert) . "\n";
?>以上示例会输出：
9