helpers.php
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<?php
/*
* This file is part of the overtrue/wechat.
*
* (c) overtrue <i@overtrue.me>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
/**
* helpers.php.
*
* @author overtrue <i@overtrue.me>
* @copyright 2015 overtrue <i@overtrue.me>
*
* @see https://github.com/overtrue
* @see http://overtrue.me
*/
namespace EasyWeChat\Payment;
/**
* Generate a signature.
*
* @param array $attributes
* @param string $key
* @param string $encryptMethod
*
* @return string
*/
function generate_sign(array $attributes, $key, $encryptMethod = 'md5')
{
ksort($attributes);
$attributes['key'] = $key;
return strtoupper(call_user_func_array($encryptMethod, [urldecode(http_build_query($attributes))]));
}
/**
* Get client ip.
*
* @return string
*/
function get_client_ip()
{
if (!empty($_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';
}
/**
* 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';
}