Twilio SMS PHP API

Fatal error: Uncaught exception 'Services_Twilio_TinyHttpException' with     message 'SSL certificate problem: self signed certificate in certificate chain'
in C:'a_testsms'Services'Twilio'TinyHttp.php:119 
Stack trace: #0    
C:'a_testsms'Services'Twilio.php(179): Services_Twilio_TinyHttp->__call('post', Array) #1 
C:'a_testsms'Services'Twilio.php(179): Services_Twilio_TinyHttp->post('/2010-04-01/Acc...', Array, 'From=%2B1201419...') #2 
C:'a_testsms'Services'Twilio'ListResource.php(92): Base_Services_Twilio->createData('/2010-04-01/Acc...', Array) #3 
C:'a_testsms'Services'Twilio'Rest'Messages.php(24): Services_Twilio_ListResource->_create(Array) #4
C:'a_testsms'Services'Twilio'Rest'Messages.php(71): Services_Twilio_Rest_Messages->create(Array) #5
C:'a_testsms'sendnotifications.php(49): Services_Twilio_Rest_Messages->sendMessage('+12014196393', '+67573852595', 'Hellow Test, Te...') #6
{main} thrown in C:'a_testsms'Services'Twilio'TinyHttp.php on line 119

我希望是否有人可以帮助我解决上述我遇到的Twilio API（PHP）错误。我的 Web 应用程序需要在客户完成注册过程后发送短信。我下载了 Twilio PHP 助手库，并为$id和$token变量创建了 PHP 脚本。我也有启用Twilio短信的电话号码。我似乎无法再自己解决这个问题了。