Notice: Undefined index: username in C:\Bitnami\wampstack-7.1.25-0\apache2\_dev_benworld\api\fb\new.post.php on line 15

Notice: Undefined index: content in C:\Bitnami\wampstack-7.1.25-0\apache2\_dev_benworld\api\fb\new.post.php on line 17
INSERT INTO content (username, ip, content) values (:username, :ip, :content)
SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'username' cannot be null