常見錯誤類型:
Parse error (解析錯誤):syntax error (語法錯誤),unexpected ‘<’,expecting end file
Notice (通知) :Undefined varable (未定義的變量):jfdlsfjldksfj
Catchable fatal (致命錯誤) error:Object of class stdClass could not be converted to string
Warning(警告):settype(): Invalid (非法) type