GMP
PHP Manual

gmp_intval

(PHP 4 >= 4.0.4, PHP 5)

gmp_intval — Convert GMP number to integer

说明

int gmp_intval ( resource $gmpnumber )

This function allows to convert GMP number to integer.

参数

gmpnumber

A GMP number.

返回值

An integer value of gmpnumber .

范例

Example#1 gmp_intval() example

<?php
// displays correct result
echo gmp_intval("2147483647") . "\n";

// displays wrong result, above PHP integer limit
echo gmp_intval("2147483648") . "\n";

// displays correct result
echo gmp_strval("2147483648") . "\n";
?>

上例将输出:

2147483647
2147483647
2147483648

注释

Warning

This function returns a useful result only if the number actually fits the PHP integer (i.e., signed long type). If you want just to print the GMP number, use gmp_strval().


GMP
PHP Manual