ERROR - 2017-06-19 13:18:05 --> Severity: Notice --> Undefined variable: RequistionDetails /opt/lampp/htdocs/Git_Server/siddharth_application/application/views/alterpurchaseorder.php 138 ERROR - 2017-06-19 13:18:05 --> Severity: Notice --> Undefined variable: CostList /opt/lampp/htdocs/Git_Server/siddharth_application/application/views/alterpurchaseorder.php 139 ERROR - 2017-06-19 13:18:05 --> Severity: Notice --> Undefined variable: MaterialList /opt/lampp/htdocs/Git_Server/siddharth_application/application/views/alterpurchaseorder.php 140 ERROR - 2017-06-19 13:18:05 --> Severity: Notice --> Undefined variable: MaterialList /opt/lampp/htdocs/Git_Server/siddharth_application/application/views/alterpurchaseorder.php 186 ERROR - 2017-06-19 13:18:05 --> Severity: Notice --> Undefined variable: CostList /opt/lampp/htdocs/Git_Server/siddharth_application/application/views/alterpurchaseorder.php 214 ERROR - 2017-06-19 15:20:56 --> Severity: Warning --> mysqli_connect(): php_network_getaddresses: getaddrinfo failed: No such host is known. C:\xampp\htdocs\siddharth_application\system\database\drivers\mysqli\mysqli_driver.php 77 ERROR - 2017-06-19 15:20:56 --> Severity: Warning --> mysqli_connect(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: No such host is known. C:\xampp\htdocs\siddharth_application\system\database\drivers\mysqli\mysqli_driver.php 77 ERROR - 2017-06-19 15:20:56 --> Unable to connect to the database