ERROR - 2017-04-28 11:01:14 --> Severity: Warning --> explode() expects parameter 2 to be string, array given C:\xampp\htdocs\siddharth_application\application\third_party\dompdf\include\style.cls.php 948 ERROR - 2017-04-28 11:01:17 --> Severity: Notice --> Undefined variable: filename C:\xampp\htdocs\siddharth_application\application\controllers\purchaseorderform.php 81