db2_conn_errormsg
(PECL ibm_db2 >= 1.0.0)
db2_conn_errormsg — Returns the last connection error message and SQLCODE value
Description
$connection
] )
db2_conn_errormsg() returns an error message and SQLCODE
value representing the reason the last database connection attempt failed.
As db2_connect() returns FALSE in the event of a failed
connection attempt, do not pass any parameters to
db2_conn_errormsg() to retrieve the associated error
message and SQLCODE value.
If, however, the connection was successful but becomes invalid over time,
you can pass the connection parameter to retrieve
the associated error message and SQLCODE value for a specific connection.
Parameters
-
connection -
A connection resource associated with a connection that initially succeeded, but which over time became invalid.
Return Values
Returns a string containing the error message and SQLCODE value resulting from a failed connection attempt. If there is no error associated with the last connection attempt, db2_conn_errormsg() returns an empty string.
Examples
Example #1 Retrieving the error message returned by a failed connection attempt
The following example demonstrates how to return an error message and SQLCODE value after deliberately passing invalid parameters to db2_connect().
<?php
$conn = db2_connect('badname', 'baduser', 'badpassword');
if (!$conn) {
print db2_conn_errormsg();
}
?>
The above example will output:
[IBM][CLI Driver] SQL1013N The database alias name or database name "BADNAME" could not be found. SQLSTATE=42705 SQLCODE=-1013
See Also
- db2_conn_error() - Returns a string containing the SQLSTATE returned by the last connection attempt
- db2_connect() - Returns a connection to a database
- db2_stmt_error() - Returns a string containing the SQLSTATE returned by an SQL statement
- db2_stmt_errormsg() - Returns a string containing the last SQL statement error message
- PHP Руководство
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- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
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- IBM DB2, Cloudscape and Apache Derby
- db2_autocommit
- db2_bind_param
- db2_client_info
- db2_close
- db2_column_privileges
- db2_columns
- db2_commit
- db2_conn_error
- db2_conn_errormsg
- db2_connect
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- db2_escape_string
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Коментарии
A word of warning:
It appears that if you specify an invalid ibm_db2.instance_name in your php.ini file, your cataloged db2_connect() will fail with a returned value of false and when you use db2_conn_error() or db2_conn_errormsg() to check on the reason, those functions will return an empty string.