Pterodactyl-Panel/app/helpers.php

<?php
/**
 * Pterodactyl - Panel
 * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
 *
 * This software is licensed under the terms of the MIT license.
 * https://opensource.org/licenses/MIT
 */
if (! function_exists('human_readable')) {
    /**
     * Generate a human-readable filesize for a given file path.
     *
     * @param string $path
     * @param int    $precision
     * @return string
     */
    function human_readable($path, $precision = 2)
    {
        if (is_numeric($path)) {
            $i = 0;
            while (($path / 1024) > 0.9) {
                $path = $path / 1024;
                ++$i;
            }

            return round($path, $precision) . ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'][$i];
        }

        return app('file')->humanReadableSize($path, $precision);
    }
}

if (! function_exists('is_digit')) {
    /**
     * Deal with normal (and irritating) PHP behavior to determine if
     * a value is a non-float positive integer.
     *
     * @param mixed $value
     * @return bool
     */
    function is_digit($value)
    {
        return is_bool($value) ? false : ctype_digit(strval($value));
    }
}

if (! function_exists('object_get_strict')) {
    /**
     * Get an object using dot notation. An object key with a value of null is still considered valid
     * and will not trigger the response of a default value (unlike object_get).
     *
     * @param object $object
     * @param string $key
     * @param null   $default
     * @return mixed
     */
    function object_get_strict($object, $key, $default = null)
    {
        if (is_null($key) || trim($key) == '') {
            return $object;
        }

        foreach (explode('.', $key) as $segment) {
            if (! is_object($object) || ! property_exists($object, $segment)) {
                return value($default);
            }

            $object = $object->{$segment};
        }

        return $object;
    }
}