我正在使用许多数据库,我想知道是否可以连接 mysqli 并在示例之后指定数据库
$mysqli = new mysqli("localhost", "user", "password", "database");
$req = $mysqli->query("SELECT * FROM `table` WHERE id = '1' ");
会变成
$mysqli = new mysqli("localhost", "user", "password");
$req = $mysqli->query("SELECT * FROM `database`.`table` WHERE id = '1' ");
我可以添加 $mysqli->select_db("database");
但如果有办法使用上面的查询,我想知道该怎么做。谢谢!
最佳答案
是的,其实方法很简单, 就这样做
$mysqli = new mysqli("localhost", "user", "password");
$res = $mysqli->query("SHOW DATABASES");
while ($row = $res->fetch_assoc()) {
echo ($results, $row['Database'] . "\n");
}
关于php - MySQLi 连接而不指定数据库,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28544617/