Php/docs/mysqlnduhconnection.query

• PHP Manual
• MysqlndUhConnection
• Performs a query on the database

MysqlndUhConnection::query

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::query — Performs a query on the database

说明

public MysqlndUhConnection::query ( mysqlnd_connection $connection , string $query ) : bool

Performs a query on the database (COM_QUERY).

参数

connection

Mysqlnd connection handle. Do not modify!

query

The query string.

返回值

Returns true on success. Otherwise, returns false

范例

Example #1 MysqlndUhConnection::query() example

<?phpclass proxy extends MysqlndUhConnection { public function query($res, $query) {  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));  $query = "SELECT 'How about query rewriting?'";  $ret = parent::query($res, $query);  printf("%s returns %s\n", __METHOD__, var_export($ret, true));  return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$res = $mysqli->query("SELECT 'Welcome mysqlnd_uh!' FROM DUAL");var_dump($res->fetch_assoc());?>

以上例程会输出：

proxy::query(array (
  0 => NULL,
  1 => 'SELECT \'Welcome mysqlnd_uh!\' FROM DUAL',
))
proxy::query returns true
array(1) {
  ["How about query rewriting?"]=>
  string(26) "How about query rewriting?"
}

参见

• mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
• mysqli_query() - 对数据库执行一次查询
• mysql_query() - 发送一条 MySQL 查询