Fatal error: Uncaught Error: Call to undefined function xxtea_decrypt() in C:\Project\WWW\SanGuo130\ThinkPHP\Library\Vendor\phpRPC\pecl\xxtea\test\test.php:2 Stack trace: #0 {main} thrown in C:\Project\WWW\SanGuo130\ThinkPHP\Library\Vendor\phpRPC\pecl\xxtea\test\test.php on line 2