PHP中Python的格式函数的等价物

Question

Python background, and the 'format' function used to be so handy to me. I have this following toString in Python for the famous Fraction class:

def __str__(self):
    """
    Return a user friendly form for the fraction. 
    :return: str 
    """ 
    return "{}/{}".format(self.numerator, self.denominator) 

Java has a very similar one and I need something equivalent for the PHP, does it have a similar format function?

Answer 1

Definitely looking for sprintf

$whole = 100;
$decimal = 50;

$fullNumber = sprintf("%d.%d", $whole, $decimal);
echo $fullNumber;