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(PECL ibm_db2 >= 1.0.0)
db2_conn_error — Returns a string containing the SQLSTATE returned by the last connection attempt
$connection
] ) 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 '?
. You
can also call db2_conn_errormsg() to retrieve an
explicit error message and the associated SQLCODE value.
sqlstate-value
'
connection
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() .
<?php
$conn = db2_connect ( 'badname' , 'baduser' , 'badpassword' );
if (! $conn ) {
print "SQLSTATE value: " . db2_conn_error ();
}
?>
以上例程会输出:
SQLSTATE value: 08001