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    gmp_intval

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

    gmp_intval — Convert GMP number to integer

    说明

    gmp_intval(GMP|int|string $num): int

    This function converts GMP number into native PHP ints.

    参数

    num

    GMP 对象或 int ，或数字string。

    返回值

    The int value of num.

    示例

    示例 #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";
    ?>

    以上示例会输出：

    2147483647
2147483647
2147483648

    注释

    警告

    This function returns a useful result only if the number actually fits the PHP integer (i.e., signed long type). To simply print the GMP number, use gmp_strval().

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