DB2_CONN_ERROR(3) 1 DB2_CONN_ERROR(3)
db2_conn_error - Returns a string containing the SQLSTATE returned by the last connection attempt
SYNOPSIS
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)