cubrid_query sends a unique query (multiple queries are not supported) to the currently active database on the server that's associated with the specified conn_identifier.
An SQL query
Data inside the query should be properly escaped.
The CUBRID connection. If the connection identifier is not specified, the last connection opened by cubrid_connect is assumed.
For SELECT, SHOW, DESCRIBE, EXPLAIN and other statements returning resultset, cubrid_query returns a resource on success, or false on error.
For other type of SQL statements, INSERT, UPDATE, DELETE, DROP, etc, cubrid_query returns true on success or false on error.
The returned result resource should be passed to cubrid_fetch_array, and other functions for dealing with result tables, to access the returned data.
Use cubrid_num_rows to find out how many rows were returned for a SELECT statement or cubrid_affected_rows to find out how many rows were affected by a DELETE, INSERT, REPLACE, or UPDATE statement.
cubrid_query will also fail and return false if the user does not have permission to access the table(s) referenced by the query.