aspectRatioRounded

aspect-ratio-rounded.php

public static function aspectRatioRounded($a, $b) {
    $total = $a + $b;
    for($i = 1; $i <= 40; $i++) {
        $arx = $i * 1.0 * $a / $total;
        $brx = $i * 1.0 * $b / $total;
        if($i == 40 || (
                abs($arx - round($arx)) <= 0.02 &&
                abs($brx - round($brx)) <= 0.02)) {
            # Accept aspect ratios within a given tolerance
            return round($arx).'x'.round($brx);
        }
    }
}