DB2_CLOSE(3) 1 DB2_CLOSE(3)db2_close - Closes a database connectionSYNOPSIS
bool db2_close (resource $connection)
DESCRIPTION
This function closes a DB2 client connection created with db2_connect(3) and returns the corresponding resources to the database server.
If you attempt to close a persistent DB2 client connection created with db2_pconnect(3), the close request is ignored and the persistent
DB2 client connection remains available for the next caller.
PARAMETERS
o $connection
- Specifies an active DB2 client connection.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
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.
SEE ALSO db2_connect(3), db2_pclose(3), db2_pconnect(3).
PHP Documentation Group DB2_CLOSE(3)
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DB2_CONN_ERROR(3) 1 DB2_CONN_ERROR(3)db2_conn_error - Returns a string containing the SQLSTATE returned by the last connection attemptSYNOPSIS
string db2_conn_error ([resource $connection])
DESCRIPTION db2_conn_error(3) returns an SQLSTATE value representing the reason the last attempt to connect to a database failed. As db2_connect(3)
returns FALSE in the event of a failed connection attempt, you do not pass any parameters to db2_conn_error(3) to retrieve the SQLSTATE
value.
If, however, the connection was successful but becomes invalid over time, you can pass the $connection parameter to retrieve the SQLSTATE
value for a specific connection.
To learn what the SQLSTATE value means, you can issue the following command at a DB2 Command Line Processor prompt: db2 '? $sqlstate-
value'. You can also call db2_conn_errormsg(3) to retrieve an explicit error message and the associated SQLCODE value.
PARAMETERS
o $connection
- A connection resource associated with a connection that initially succeeded, but which over time became invalid.
RETURN VALUES
Returns the SQLSTATE value resulting from a failed connection attempt. Returns an empty string if there is no error associated with the
last connection attempt.
EXAMPLES
Example #1
Retrieving an SQLSTATE value for a failed connection attempt
The following example demonstrates how to return an SQLSTATE value after deliberately passing invalid parameters to db2_connect(3).
<?php
$conn = db2_connect('badname', 'baduser', 'badpassword');
if (!$conn) {
print "SQLSTATE value: " . db2_conn_error();
}
?>
The above example will output:
SQLSTATE value: 08001
SEE ALSO db2_conn_errormsg(3), db2_connect(3), db2_stmt_error(3), db2_stmt_errormsg(3).
PHP Documentation Group DB2_CONN_ERROR(3)
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