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PHP - Manual: 示例 - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: 示例

2025-05-11

示例

示例 #1 Factorial function using GMP

<?php
function fact($x)
{
$return = 1;
for (
$i=2; $i <= $x; $i++) {
$return = gmp_mul($return, $i);
}
return
$return;
}

echo
gmp_strval(fact(1000)) . "\n";
?>

This will calculate factorial of 1000 (pretty big number) very fast.

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官方地址:https://www.php.net/manual/en/gmp.examples.php

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