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PHP mysqli 增强-批量执行sql 语句

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Release: 2016-06-23 14:35:44
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mysqli 增强-批量执行sql 语句

<?php    //mysqli 增强-批量执行sql 语句    //批量执行dql    //使用mysqli的mysqli::multi_query() 一次性添加3个用户        $mysqli =new MySQLi("localhost","root","root","test");    if($mysqli->connect_error){        die ("连接失败".$mysqli->connect_error);    }        //注意分号    $sqls="insert into user1 (name,password,email,age) values('AAA',md5('AAA'),'AAA@hu.com',25);";    $sqls.="insert into user1 (name,password,email,age) values('BBB',md5('BBB'),'BBB@hu.com',25);";    $sqls.="insert into user1 (name,password,email,age) values('CCC',md5('CCC'),'CCC@hu.com',25);";        //批量执行dml 可以混合使用delete insert update 最好不要使用select    //$sqls.="update user1 set age=15 where id=1;";    //$sqls.="delete from user1 where id=10";    $res=$mysqli->multi_query($sqls);        if(!$res){        echo "操作失败".$mysqli->error;    }else{        echo "OK";    }?>
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2、批量查询

<?php    //使用mysqli的mysqli::multi_query() 一次性查询表的机构和表中的内容    //1、创建mysqli对象    $mysqli=new MySQLi("localhost","root","root","test");    if($mysqli->connect_error){        die("连接失败".$mysqli->connect_error);    }    //2、批量查询语句    $sqls="select *from user1;";    $sqls.="desc user1";    //3、处理结果    //如果成功,至少有一个结果集    if($res=$mysqli->multi_query($sqls)){                do{            //取出第一个结果集            $res=$mysqli->store_result();            while($row=$res->fetch_row()){                foreach($row as $val){                    echo '--'.$val;                }                echo '<br/>';            }            //及时释放内存            $res->free();            //判断是否还有结果集            if($mysqli->more_results()){                echo "********新的结果集***************<br/>";            }else{                break;            }        }while($mysqli->next_result());    }        //4、关闭资源    $mysqli->close();?>
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