PHP 7.0.6 Released

    gmp_pow

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

    gmp_pow — Raise number into power

    Description

    GMP gmp_pow ( GMP $base , int $exp )

    Raise base into power exp.

    Parameters

    base

    The base number.

    Either a GMP number resource in PHP 5.5 and earlier, a GMP object in PHP 5.6 and later, or a numeric string provided that it is possible to convert the latter to a number.

    exp

    The positive power to raise the base.

    Return Values

    The new (raised) number, as a GMP number. The case of 0^0 yields 1.

    Examples

    Example #1 gmp_pow() example

    <?php
    $pow1     = gmp_pow("2", 31);
    echo     gmp_strval($pow1) . "\n";
    $pow2 = gmp_pow("0", 0);
    echo     gmp_strval($pow2) . "\n";
    $pow3 = gmp_pow("2", -1); // Negative exp, generates warning
    echo gmp_strval($pow3) . "\n";
    ?>

    The above example will output:

    2147483648
1

    User Contributed Notes

    rahulkadukar at yahoo dot com
    4 years ago
    A Sample code can be shown as

    <?php
    echo gmp_strval(gmp_pow(4,4)); //This would give the answer as 256
    ?>
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