Number of affected rows Zend DB (UPDATE)

问题

I'm new to Zend Framework and I'd like to know how I can get the number of affected rows from this:

$sql = "UPDATE auth SET act='', status='1' WHERE username = ? AND act = ? ";
$stmt = $this->dbh->prepare($sql);
$stmt->execute(array($this->username, $this->key));

I saw a few posts on this forum, but they we based on MySQLi and SELECT statements where you can actually count the rows using count().

Can anyone suggest how I can alter this to support rowCount.

This is how I connect to my database:

$parameters = array(
    'host' => 'localhost',
    'username' => 'root',
    'password' => '',
    'dbname' => 'users'
);

try {
        $db = Zend_Db::factory('Pdo_Mysql', $parameters);
...

This is in my Bootstrap.php. I did it this way because I work with more than one databases.

回答1:

Zend_Db_Statement_Pdo has a rowCount() method.

See the API docs

Returns the number of rows affected by the execution of the last INSERT, DELETE, or UPDATE statement executed by this statement object.

This means you can simply:-

$rowsAffected = $stmt->rowCount();

Straight after calling execute() and you should get the number of rows affected.

来源：https://stackoverflow.com/questions/9132162/number-of-affected-rows-zend-db-update