(PECL CUBRID >= 8.3.0)
cubrid_commit — Commit a transaction
$conn_identifier )
    The cubrid_commit() function is used to execute commit
    on the transaction pointed by conn_identifier,
    currently in progress. Connection to the server is closed after the
    cubrid_commit() function is called; However, 
    the connection handle is still valid.
  
In CUBRID PHP, auto-commit mode is disabled by default for transaction management. You can set it by using cubrid_set_autocommit(). You can get its status by using cubrid_get_autocommit(). Before you start a transaction, remember to disable the auto-commit mode.
conn_identifierConnection identifier.
    TRUE, when process is successful.
  
    FALSE, when process is unsuccessful.
  
Example #1 cubrid_commit() example
<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");
@cubrid_execute($conn, "DROP TABLE publishers");
$sql = <<<EOD
CREATE TABLE publishers(
pub_id CHAR(3), 
pub_name VARCHAR(20), 
city VARCHAR(15), 
state CHAR(2), 
country VARCHAR(15)
)
EOD;
cubrid_set_autocommit($conn,false);
if (!cubrid_execute($conn, $sql)) {
    printf("Error facility: %d\nError code: %d\nError msg: %s\n", cubrid_error_code_facility(), cubrid_error_code(), cubrid_error_msg());
    cubrid_disconnect($conn);
    exit;
}
$req = cubrid_prepare($conn, "INSERT INTO publishers VALUES(?, ?, ?, ?, ?)");
$id_list = array("P01", "P02", "P03", "P04");
$name_list = array("Abatis Publishers", "Core Dump Books", "Schadenfreude Press", "Tenterhooks Press");
$city_list = array("New York", "San Francisco", "Hamburg", "Berkeley");
$state_list = array("NY", "CA", NULL, "CA");
$country_list = array("USA", "USA", "Germany", "USA");
for ($i = 0, $size = count($id_list); $i < $size; $i++) {
    cubrid_bind($req, 1, $id_list[$i]);
    cubrid_bind($req, 2, $name_list[$i]);
    cubrid_bind($req, 3, $city_list[$i]);
    cubrid_bind($req, 4, $state_list[$i]);
    cubrid_bind($req, 5, $country_list[$i]);
    if (!($ret = cubrid_execute($req))) {
        break;
    }
}
if (!$ret) {
    cubrid_rollback($conn);
} else {
    cubrid_commit($conn);
    $req = cubrid_execute($conn, "SELECT * FROM publishers");
    while ($result = cubrid_fetch_assoc($req)) {
        printf("%-3s %-20s %-15s %-3s %-15s\n", 
            $result["pub_id"], $result["pub_name"], $result["city"], $result["state"], $result["country"]);
    }
}
cubrid_disconnect($conn);
?>
The above example will output:
P01 Abatis Publishers New York NY USA P02 Core Dump Books San Francisco CA USA P03 Schadenfreude Press Hamburg Germany P04 Tenterhooks Press Berkeley CA USA