PHP db2_conn_error function

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db2_conn_error

(PECL)

db2_conn_error() returns an SQLSTATE value representing
the reason the last attempt to connect to a database failed. As
db2_connect() returns FALSE in the event of a failed
connection attempt, you do not pass any parameters to
db2_conn_error() 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() to retrieve an
explicit error message and the associated SQLCODE value.

A connection resource associated with a connection that initially
succeeded, but which over time became invalid.

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.

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().

$conn = db2_connect('badname', 'baduser', 'badpassword');
if (!$conn) {
    print "SQLSTATE value: " . db2_conn_error();
}

The above example will output: