RollBackTrans.rst

RollBackTrans

Rollback the transaction, this must be used in conjunction with method StartTrans.

returns false if there was an error executing the ROLLBACK.

Example

<?php

require_once 'dalmp.php';

$user = getenv('MYSQL_USER') ?: 'root';
$password = getenv('MYSQL_PASS') ?: '';

$DSN = "utf8://$user:$password".'@127.0.0.1/test';

$db = new DALMP\Database($DSN);

$db->Execute('CREATE TABLE IF NOT EXISTS t_test (id INT NOT NULL PRIMARY KEY) ENGINE=InnoDB');
$db->Execute('TRUNCATE TABLE t_test');
$db->FetchMode('ASSOC');

$db->StartTrans();
$db->Execute('INSERT INTO t_test VALUES(1)');
    $db->StartTrans();
    $db->Execute('INSERT INTO t_test VALUES(2)');
    print_r($db->GetAll('SELECT * FROM t_test'));
        $db->StartTrans();
        $db->Execute('INSERT INTO t_test VALUES(3)');
        print_r($db->GetAll('SELECT * FROM t_test'));
            $db->StartTrans();
            $db->Execute('INSERT INTO t_test VALUES(7)');
            print_r($db->GetALL('SELECT * FROM t_test'));
        $db->RollBackTrans();
        print_r($db->GetALL('SELECT * FROM t_test'));
        $db->CompleteTrans();
    $db->CompleteTrans();
$db->CompleteTrans();

if ($db->CompleteTrans()) {
 // your code
}

.. seealso::

   `StartTrans </en/latest/database/StartTrans.html>`_