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8.9.7.35 MysqlndUhConnection::selectDb

Copyright 1997-2018 the PHP Documentation Group.

  • MysqlndUhConnection::selectDb

    Selects the default database for database queries

Description

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

Selects the default database for database queries.

Parameters

connection

Mysqlnd connection handle. Do not modify!

database

The database name.

Return Values

Returns TRUE on success. Otherwise, returns FALSE

Examples

Example 8.375 MysqlndUhConnection::selectDb example

<?php
class 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");
?>

The above example will output:


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


See Also

mysqlnd_uh_set_connection_proxy
mysqli_select_db
mysql_select_db