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    gmp_add

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

    gmp_add — Add numbers

    说明

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

    Add two numbers.

    参数

    num1

    The first summand (augent).

    GMP 对象或 int ，或数字string。

    num2

    The second summand (addend).

    GMP 对象或 int ，或数字string。

    返回值

    A GMP number representing the sum of the arguments.

    示例

    示例 #1 gmp_add() example

    <?php
    $sum     = gmp_add("123456789012345", "76543210987655");
    echo     gmp_strval($sum) . "\n";
    ?>

    以上示例会输出：

    200000000000000

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