The begin transaction is undefined in mysql. Im actually using it to run multiple queries in my code to move a row from one table to another. Much help will be appreciated. Okay my question is , Why is my Begin_transaction() not defined?
<?php
If(isset($trade_id)){
$trade_id= $_GET['trade_id'];
}
require_once('connect.php');
$mysqli = new mysqli($database_hostname, $database_username, $database_password, $database_name) or exit("Error connecting to database");
try {
// First of all, let's begin a transaction
$mysqli->begin_transaction();
// A set of queries; if one fails, an exception should be thrown
$mysqli->query("INSERT INTO `trade_history1` (session_id, trade_id, selection, date, type, size, bidprice, offerprice, stoploss, takeprofit, profitandloss, dateclose, close)
SELECT session_id, trade_id, selection, date, type, size, bidprice, offerprice, stoploss, takeprofit, profitandloss, dateclose, close
FROM `opentrades`
WHERE `trade_id` = " . $tradeid);
$mysqli->query("DELETE FROM `opentrades` WHERE `trade_id` = " . $trade_id);
// If we arrive here, it means that no exception was thrown
// i.e. no query has failed, and we can commit the transaction
$mysqli->commit();
$_SESSION['message'] = 'Successfully deleted';
} catch (Exception $e) {
// An exception has been thrown
// We must rollback the transaction
$_SESSION['message'] = 'Unable to delete';
$mysqli->rollback();
}
$mysqli->close();
// if we successfully delete this, we
if ($successfullyDeleted) {
$_SESSION['message'] = 'Successfully deleted';
} else {
$_SESSION['message'] = 'Unable to delete';
}
header('Location: js.php');
?>
PHP Manual says mysqli::begin_transaction needs PHP version 5.5.0 or upper ( http://php.net/manual/en/mysqli.begin-transaction.php ).
But you can use mysqli::autocommit instead ( http://php.net/manual/en/mysqli.autocommit.php ) with PHP 5.x :
//Begin transaction
$mysqli->autocommit(FALSE);
...
//End transaction and auto commit
$mysqli->autocommit(TRUE);
$mysqli->begin_transaction();
must be $mysqli->autocommit(FALSE);
Check this
You can use this code i have tested.
Object oriented style
$cid->multi_query('start transaction;');
$cid->multi_query("insert into demo values('1','Pankaj','9031251290')");
$cid->multi_query('commit;');
Procedural style
mysqli_query($link, "start transaction;");
mysqli_query($link, "INSERT INTO Language VALUES ('DEU', 'Bavarian', 'F', 11.2)");
mysqli_query($link, "commit;");
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