db2_rollback Rolls back a transaction &reftitle.description; booldb2_rollback resourceconnection Rolls back an in-progress transaction on the specified connection resource and begins a new transaction. PHP applications normally default to AUTOCOMMIT mode, so db2_rollback normally has no effect unless AUTOCOMMIT has been turned off for the connection resource. &reftitle.parameters; connection A valid database connection resource variable as returned from db2_connect or db2_pconnect. &reftitle.returnvalues; &return.success; &reftitle.examples; In the following example, we count the number of rows in a table, turn off AUTOCOMMIT mode on a database connection, delete all of the rows in the table and return the count of 0 to prove that the rows have been removed. We then issue db2_rollback and return the updated count of rows in the table to show that the number is the same as before we issued the DELETE statement. The return to the original state of the table demonstrates that the roll back of the transaction succeeded. ]]> &example.outputs; &reftitle.seealso; db2_autocommit db2_commit