Example
Turn off auto-committing, make some queries, commit the queries, then roll back the current transaction:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Set autocommit to off
mysqli_autocommit($con,FALSE);
// Insert some values
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Peter','Griffin',35)");
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");
// Commit transaction
mysqli_commit($con);
// Rollback
transaction
mysqli_rollback($con);
// Close connection
mysqli_close($con);
?>
Definition and Usage
The mysqli_rollback() function rolls back the current transaction for the specified database connection.
Tip: Also look at the href="func_mysqli_commit.html">mysqli_commit() function, which commits the current transaction for the specified database connection, and the mysqli_autocommit() function, which turns on or off auto-committing database modifications.
Syntax
mysqli_rollback(connection);
| Parameter | Description |
|---|---|
| connection | Required. Specifies the MySQL connection to use |
Technical Details
| Return Value: | TRUE on success. FALSE on failure |
|---|---|
| PHP Version: | 5+ |
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