/**
* 库:https://github.com/ivanakimov/hashids.php
* 生成唯一字符串
* @param $str
* @param string $salt
* @param string $length
* @param string $alphabet
* @return false|string
*/
public static function hashids($str, $salt = '', $length = '', $alphabet = '')
{
$hashids = new Hashids($salt, $length, $alphabet);
return $hashids->encode($str);
}
/**
* hashids解析
* @param $str
* @param string $salt
* @param string $length
* @param string $alphabet
* @return false|string
*/
public static function decodehashids($str, $salt = '', $length = '', $alphabet = '')
{
$hashids = new Hashids($salt, $length, $alphabet);
return $hashids->decode($str);
}