<?php
$conn = cubrid_connect("localhost", 33000, "demodb");
$req = @cubrid_execute($conn, "SELECT * FROM unknown");
if (!$req) {
    printf("Error facility: %d\nError code: %d\nError msg: %s\n", 
        cubrid_error_code_facility(), cubrid_error_code(), cubrid_error_msg());
    cubrid_disconnect($conn);
    exit;
}
?>
    
    The above example will output:
Error facility: 1
Error code: -493
Error msg: Syntax: In line 1, column 15 before END OF STATEMENT
Syntax error: unexpected 'unknown'