cubrid_rollback

(PECL CUBRID >= 8.3.0)

cubrid_rollback — Roll back a transaction

Descrição

cubrid_rollback(resource $conn_identifier): bool

The cubrid_rollback() function executes rollback on the transaction pointed by conn_identifier, currently in progress.

Connection to server is closed after calling cubrid_rollback(). Connection handle, however, is still valid.

Parâmetros

conn_identifier: Connection identifier.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.

Exemplos

Exemplo #1 cubrid_rollback() example

<?php
$conn = cubrid_connect("127.0.0.1", 33000, "demodb", "dba");
cubrid_set_autocommit($conn,false);

@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;

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);
?>

O exemplo acima produzirá:

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

Veja Também

cubrid_commit() - Commit a transaction
cubrid_disconnect() - Close a database connection

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