mysqli_autocommit

(PHP 5 CVS only)

mysqli_autocommit

(no version information, might be only in CVS)

mysqli->auto_commit -- Turns on or off auto-commiting database modifications

Description

Procedural style:

bool mysqli_autocommit ( object link, bool mode)

Object oriented style (method)

class mysqli {

bool auto_commit ( bool mode)

}

mysqli_autocommit() is used to turn on or off auto-commit mode on queries for the database connection represented by the link object.

Note: mysqli_autocommit() doesn't work with non transactional table types (like MyISAM or ISAM).

To determine the current state of autocommit use the SQL command 'SELECT @@autocommit'.

Return values

Returns TRUE on success or FALSE on failure.

Example

Example 1. Using the mysqli_autocommit function

<?php
/*
  +-----------------------------------------------------------+
  | file: mysqli_autocommit.php                               |
  +-----------------------------------------------------------+
  | connects to MySQL server on localhost, turns autocommit   |
  | on and retrieves autocommit variable                      |
  +-----------------------------------------------------------+
*/
   
   /* ---- Procedural style ---- */
   
$link = mysqli_connect("localhost", "my_user", "my_password", "test")
      or die(
"Can't connect to MySQL server on localhost");

   
/* turn autocommit on */
   
mysqli_autocommit($link, TRUE);

   if (
$result = mysqli_query($link, "SELECT @@autocommit")) {
      
$row = mysqli_fetch_row($result);
      
printf("Autocommit is %s\n", $row[0]);
      
mysqli_free_result($result);
   }

   
mysqli_close($link);

   
/* ---- Object oriented style ----*/
   
$mysqli = new mysqli("localhost", "my_user", "my_password", "test");

   if (
mysqli_connect_errno()) {
      
printf("Connect failed: %s\n", mysqli_connect_error());
      exit();
   }

   
/* turn autocommit on */
   
$mysqli->autocommit(TRUE);

   if (
$result = $mysqli->query("SELECT @@autocommit")) {
      
$row = $result->fetch_row();
      
printf("Autocommit is %s\n", $row[0]);
      
$result->free();
   }

   
$mysqli->close();
?>

?>

See also

mysqli_commit(), mysqli_rollback().