$dbname = "tIXZeAfkXSSgYzKuMwGZ";//百度bae数据库 这就是生成的数据库，要替换成自己的
  
 /*从环境变量里取出数据库连接需要的参数*/
 $host = getenv('HTTP_BAE_ENV_ADDR_SQL_IP');
 $port = getenv('HTTP_BAE_ENV_ADDR_SQL_PORT');
 $user = getenv('HTTP_BAE_ENV_AK');
 $pwd = getenv('HTTP_BAE_ENV_SK');
  
 $db= new mysqli($host,$user,$pwd,$dbname,$port);
 if(mysqli_connect_errno()){
  die("coonet error").mysqli_connect_errno();
 }else{
  echo 'ok';
 }
$db->query("set names utf8");

$sql = "create table if not exists t_mysql(
 id int(10) primary key AUTO_INCREMENT,
 no int(10),
 name VARCHAR(255))";
$result = $db->query($sql);
if($result){
 echo "创建表成功";
}

$sql ="insert into t_mysql(id,no,name) values(null,1,'你好')";
$result = $db->query($sql);
if($result){
 echo '插入成功';
}

$sql ="update t_mysql set name='重活' where id=1";
$result = $db->query($sql);
if($db->affected_rows>0 && $result){
 echo '修改成功';
}

$sql ="delete from t_mysql where id=4";
$result = $db->query($sql);
if($result && $db->affected_rows>0){
 echo '删除成功';
}

$sql = "select * from t_mysql";
$result = $db->query($sql);
if($result){
 $row = $result->fetch_row(); //索引数组 $r[0]
 print_r($row);
}

$sql = "drop table if exists t_mysql";
$result = $db->query($sql);
if($result){
 echo "删除表成功";
}

$db->autocommit(FALSE);
$result1 = $db->query("insert into t_mysql values(null,3,'2333')");
$result2 = $db->query("insert into t_mysql values(null,5,'44433')");
if($result1 && $result2){
 $db->commit();
 echo 'ok';
}else{
 $db->rollback();
}

<?php
 
 $dbname = "tIXZeAfkXSSgYzKuMwGZ";//百度bae数据库
  
 /*从环境变量里取出数据库连接需要的参数*/
 $host = getenv('HTTP_BAE_ENV_ADDR_SQL_IP');
 $port = getenv('HTTP_BAE_ENV_ADDR_SQL_PORT');
 $user = getenv('HTTP_BAE_ENV_AK');
 $pwd = getenv('HTTP_BAE_ENV_SK');
  
 /*接着调用mysql_connect()连接服务器*/
 $link = @mysql_connect("{$host}:{$port}",$user,$pwd,true);
 if(!$link) {
  die("Connect Server Failed: " . mysql_error());
 }
 /*连接成功后立即调用mysql_select_db()选中需要连接的数据库*/
 if(!mysql_select_db($dbname,$link)) {
  die("Select Database Failed: " . mysql_error($link));
 }
 else{
  echo 'ok';
 }
 mysql_query("set names utf8");//设置编码utf8
?>