Yii2-style bool-checker

BooleanHelper.php

<?php

abstract class BooleanHelper
{
    public static function equalTrue($value): bool
    {
        return self::process($value) === self::getTrueValue();
    }

    public static function notEqualTrue($value): bool
    {
        return self::equalTrue($value) !== true;
    }

    public static function equalFalse($value): bool
    {
        return self::process($value) === self::getFalseValue();
    }

    public static function notEqualFalse($value): bool
    {
        return self::equalFalse($value) === false;
    }

    private static function process($value): string
    {
        ob_start();
        var_dump((bool)$value);
        $result = ob_get_clean();
        
        return rtrim($result);
    }

    private static function getTrueValue(): string
    {
        return 'bool(true)';
    }

    private static function getFalseValue(): string
    {
        return 'bool(false)';
    }

    public static function __callStatic($name, $arguments): bool
    {
        $value = array_pop($arguments);
        $match = ['distance' => INF, 'choice' => null];
        $functions = ['equalTrue', 'notEqualTrue', 'equalFalse', 'notEqualFalse'];
        foreach ($functions as $key => $function) {
            $distance = levenshtein($function, $name);
            if ($match['distance'] > $distance) {
                $match['distance'] = $distance;
                $match['choice'] = $key;
            }
        }

        return call_user_func([self::class, $functions[$match['choice']]], $value);
    }
}