Warning: Undefined array key "member" in /volume2/web/iteach4u/htdocs/2017/_lib/function_DB.php on line 1655

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/_lib/function_DB.php on line 1655

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 22

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 28

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 33

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 34

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/_lib/function_DB.php on line 1655

Warning: Trying to access array offset on value of type null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 42

Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'buyer' cannot be null in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php:41
Stack trace:
#0 /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php(41): PDOStatement->execute(Array)
#1 {main}
  thrown in /volume2/web/iteach4u/htdocs/2017/studymaterials/_pds_buy.php on line 41