log

    (PHP 4, PHP 5, PHP 7, PHP 8)

    log — Natural logarithm

    Açıklama

    log(float $num, float $base = M_E): float

    If the optional base parameter is specified, log() returns logbase num, otherwise log() returns the natural logarithm of num.

    Bağımsız Değişkenler

    num

    The value to calculate the logarithm for

    base

    The optional logarithmic base to use (defaults to 'e' and so to the natural logarithm).

    Dönen Değerler

    The logarithm of num to base, if given, or the natural logarithm.

    Ayrıca Bakınız

    • log10() - Base-10 logarithm
    • exp() - Calculates the exponent of e
    • pow() - Exponential expression
    • error_log() - Tanımlı hata işleme yordamlarına bir hata iletisi gönderir

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