Because of this: $sql = mysql_query("INSERT INTO tbl (WHEN, WHAT, WHO) VALUES ('$WHEN','$WHAT','$WHO')"); $result = mysql_query($sql) or die("Fatal Error :".mysql_error()); ...you are running the query and assigning the results into $sql and then running mysql_query again in the line below. So the second query runs on a result set rather than a query statement and fails. Better to do this, at this rudimentary level: $result = mysql_query("INSERT INTO tbl (WHEN, WHAT, WHO) VALUES ('$WHEN','$WHAT','$WHO')") or die(mysql_error());
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