Php/docs/mysqlnduhconnection.selectdb

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MysqlndUhConnection::selectDb

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::selectDbSelects the default database for database queries


说明

public MysqlndUhConnection::selectDb ( mysqlnd_connection $connection , string $database ) : bool

Selects the default database for database queries.


参数

connection
Mysqlnd connection handle. Do not modify!
database
The database name.


返回值

Returns true on success. Otherwise, returns false


范例

Example #1 MysqlndUhConnection::selectDb() example

<?phpclass proxy extends MysqlndUhConnection { public function selectDb($res, $database) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $ret = parent::selectDb($res, $database);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->select_db("mysql");?>

以上例程会输出:


proxy::selectDb(array (
  0 => NULL,
  1 => 'mysql',
))
proxy::selectDb returns true

参见