PHP 8.4.0 RC4 available for testing

    fpow

    (PHP 8 >= 8.4.0)

    fpow — Raise one number to the power of another, according to IEEE 754

    Опис

    fpow(float $num, float $exponent): float

    Returns the floating point result of raising num to the power of exponent. If num is zero and exponent is less than zero, then INF is returned.

    Параметри

    num
    The base to use.
    exponent
    The exponent.

    Значення, що повертаються

    Returns a float corresponding to $num$exponent.

    Приклади

    Приклад #1 fpow() example

    <?php
    var_dump    (fpow(10, 2));
    var_dump(fpow(0, -3));
    var_dump(fpow(-1, 5.5));
    ?>

    Поданий вище приклад виведе:

    float(100)
float(INF)
float(NAN)

    Прогляньте також

    • Exponentiation operator **
    • pow() - Exponential expression
    • fdiv() - Divides two numbers, according to IEEE 754
    • fmod() - Returns the floating point remainder (modulo) of the division of the arguments

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