gmp_cmp

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_cmpCompare numbers

说明

gmp_cmp(GMP|int|string $num1, GMP|int|string $num2): int

Compares two numbers.

参数

num1

GMP 对象或 int ,或数字string

num2

GMP 对象或 int ,或数字string

返回值

Returns a positive value if a > b, zero if a = b and a negative value if a < b.

示例

示例 #1 gmp_cmp() example

<?php
$cmp1
= gmp_cmp("1234", "1000"); // greater than
$cmp2 = gmp_cmp("1000", "1234"); // less than
$cmp3 = gmp_cmp("1234", "1234"); // equal to

echo "$cmp1 $cmp2 $cmp3\n";
?>

以上示例会输出:

1 -1 0