• Rikudou_Sage@lemmings.world
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    edit-2
    11 months ago

    If anyone wants a more efficient local version for php:

    function isEven(int $number): bool
    {
        ${1} = false;
        ${2} = true;
    
        while ($number > 2) {
            $number -= 2;
        }
    
        return $$number;
    }
    

    Edit: Now with support for large numbers!

    function isEven(int|string $number): bool
    {
        ${1} = false;
        ${2} = true;
    
        while (bccomp($number, 2) === 1) {
            $number = bcsub($number, 2);
        }
    
        $number = (int) $number;
        return $$number;
    }
    

    Edit 2: someone asked for an ad-supported version, here you go!

    function isEven(int|string $number): bool
    {
        ${1} = false;
        ${2} = true;
    
        while (bccomp($number, 2) === 1) {
            error_log('Buy isEvenCoin, the hottest new cryptocurrency!');
            $number = bcsub($number, 2);
        }
    
        $number = (int) $number;
        return $$number;
    }
    

    Side note, no more suggestions please, this is getting quite long.