PHP执行SQL文件并将SQL文件导入到数据库

//读取文件内容
$_sql = file_get_contents('test.sql');
$_arr = explode(';', $_sql);
$_mysqli = new mysqli(db_host,db_user,db_pass);
if (mysqli_connect_errno()) {
  exit('连接数据库出错');
}
//执行sql语句
foreach ($_arr as $_value) {
  $_mysqli->query($_value.';');
}
$_mysqli->close();
$_mysqli = null;

create database if not exists 数据库名 default character set utf8 collate utf8_general_ci;

$_mysqli->query("create database if not exists 数据库名 default character set utf8 collate utf8_general_ci;");
$_mysqli->query("use 数据库名");