rikudou, 1 year ago (edited 1 year ago)

If anyone wants a more efficient local version for php:

<span style="color:#323232;">function isEven(int $number): bool
</span><span style="color:#323232;">{
</span><span style="color:#323232;">    ${1} = false;
</span><span style="color:#323232;">    ${2} = true;
</span><span style="color:#323232;">
</span><span style="color:#323232;">    while ($number > 2) {
</span><span style="color:#323232;">        $number -= 2;
</span><span style="color:#323232;">    }
</span><span style="color:#323232;">
</span><span style="color:#323232;">    return $$number;
</span><span style="color:#323232;">}
</span>

Edit: Now with support for large numbers!

<span style="color:#323232;">function isEven(int|string $number): bool
</span><span style="color:#323232;">{
</span><span style="color:#323232;">    ${1} = false;
</span><span style="color:#323232;">    ${2} = true;
</span><span style="color:#323232;">
</span><span style="color:#323232;">    while (bccomp($number, 2) === 1) {
</span><span style="color:#323232;">        $number = bcsub($number, 2);
</span><span style="color:#323232;">    }
</span><span style="color:#323232;">
</span><span style="color:#323232;">    $number = (int) $number;
</span><span style="color:#323232;">    return $$number;
</span><span style="color:#323232;">}
</span>

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

<span style="color:#323232;">function isEven(int|string $number): bool
</span><span style="color:#323232;">{
</span><span style="color:#323232;">    ${1} = false;
</span><span style="color:#323232;">    ${2} = true;
</span><span style="color:#323232;">
</span><span style="color:#323232;">    while (bccomp($number, 2) === 1) {
</span><span style="color:#323232;">        error_log('Buy isEvenCoin, the hottest new cryptocurrency!');
</span><span style="color:#323232;">        $number = bcsub($number, 2);
</span><span style="color:#323232;">    }
</span><span style="color:#323232;">
</span><span style="color:#323232;">    $number = (int) $number;
</span><span style="color:#323232;">    return $$number;
</span><span style="color:#323232;">}
</span>

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