Example 1. Closing a connection
     The following example demonstrates a successful attempt to close a 
     connection to an IBM DB2, Cloudscape, or Apache Derby database.
    
| 
<?php$conn = db2_connect('SAMPLE', 'db2inst1', 'ibmdb2');
 $rc = db2_close($conn);
 if ($rc) {
 echo "Connection was successfully closed.";
 }
 ?>
 | 
The above example will output:
| Connection was successfully closed. |