functions.php

<?php

use OverNick\Support\Arr;
use OverNick\Support\Collection;

if (! function_exists('value')) {
    /**
     * Return the default value of the given value.
     *
     * @param  mixed  $value
     * @return mixed
     */
    function value($value)
    {
        return $value instanceof Closure ? $value() : $value;
    }
}

if (! function_exists('data_get')) {
    /**
     * Get an item from an array or object using "dot" notation.
     *
     * @param  mixed   $target
     * @param  string|array  $key
     * @param  mixed   $default
     * @return mixed
     */
    function data_get($target, $key, $default = null)
    {
        if (is_null($key)) {
            return $target;
        }
        $key = is_array($key) ? $key : explode('.', $key);
        while (! is_null($segment = array_shift($key))) {
            if ($segment === '*') {
                if ($target instanceof Collection) {
                    $target = $target->all();
                } elseif (! is_array($target)) {
                    return value($default);
                }
                $result = Arr::pluck($target, $key);
                return in_array('*', $key) ? Arr::collapse($result) : $result;
            }
            if (Arr::accessible($target) && Arr::exists($target, $segment)) {
                $target = $target[$segment];
            } elseif (is_object($target) && isset($target->{$segment})) {
                $target = $target->{$segment};
            } else {
                return value($default);
            }
        }
        return $target;
    }
}

if (! function_exists('get_client_ip')) {
    /**
     * Get client ip.
     *
     * @return string
     */
    function get_client_ip()
    {
        if (!empty($_SERVER['REMOTE_ADDR'])) {
            $ip = $_SERVER['REMOTE_ADDR'];
        } else {
            // for php-cli(phpunit etc.)
            $ip = defined('PHPUNIT_RUNNING') ? '127.0.0.1' : gethostbyname(gethostname());
        }

        return filter_var($ip, FILTER_VALIDATE_IP) ?: '127.0.0.1';
    }
}

if (! function_exists('get_server_ip')) {
    /**
     * Get current server ip.
     *
     * @return string
     */
    function get_server_ip()
    {
        if (!empty($_SERVER['SERVER_ADDR'])) {
            $ip = $_SERVER['SERVER_ADDR'];
        } elseif (!empty($_SERVER['SERVER_NAME'])) {
            $ip = gethostbyname($_SERVER['SERVER_NAME']);
        } else {
            // for php-cli(phpunit etc.)
            $ip = defined('PHPUNIT_RUNNING') ? '127.0.0.1' : gethostbyname(gethostname());
        }

        return filter_var($ip, FILTER_VALIDATE_IP) ?: '127.0.0.1';
    }
}

if (!function_exists('ipdetection')) {
    /**
     * 内网ip检测
     *
     * @param $ip
     * @return false|int
     */
    function ipdetection($ip)
    {
        $preg = '/^(127\.0\.0\.1|0\.0\.0\.0|255\.255\.255\.255|224\.0\.0\.1|10\.\d{1,3}\.\d{1,3}\.\d{1,3}|192\.168\.\d{1,3}\.\d{1,3}|169\.254\.\d{1,3}\.\d{1,3}|172\.16\.\d{1,3}\.\d{1,3}|172.31\.\d{1,3}\.\d{1,3})$/';

        return preg_match($preg, $ip);
    }
}