<?php
$x = 55;
$level = $branches->ifElse(function ($ifElse) use ($x) {
    $ifElse->add(function () use ($x) {
        return $x >= 90 && $x < 100;
    }, function () {
        return "A";
    });
    $ifElse->add(function () use ($x) {
        return $x >= 80 && $x < 90;
    }, function () {
        return "B";
    });
    $ifElse->add(function () use ($x) {
        return $x >= 70 && $x < 80;
    }, function () {
        return "C";
    });
    $ifElse->add(function () use ($x) {
        return $x >= 60 && $x < 70;
    }, function () {
        return "D";
    });
    $ifElse->addDefault(function () {
        return "E";
    });
});
$console->log($level);
$level = $branches->switchCase(85, function ($switchCase) {
    $switchCase->add(function ($it) {
        return $it >= 90 && $it < 100;
    }, function () {
        return "A";
    });
    $switchCase->add(function ($it) {
        return $it >= 80 && $it < 90;
    }, function () {
        return "B";
    });
    $switchCase->add(function ($it) {
        return $it >= 70 && $it < 80;
    }, function () {
        return "C";
    });
    $switchCase->add(function ($it) {
        return $it >= 60 && $it < 70;
    }, function () {
        return "D";
    });
    $switchCase->addDefault(function () {
        return "E";
    });
});
$console->log($level);