<?php $mysqli=@new mysqli("localhost", "root", "123456", "xsphpdb"); if(mysqli_connect_errno()){ echo "连接数据库失败:".mysqli_connect_error(); $mysqli=null; exit; } //select语句(结果集), 非select语句,会影响行数 $sql="insert into shops(name,price,num,desn) values('hello','34.56','22','good123')"; //$sql="delete from shops where id > '80'"; $result=$mysqli->query($sql); if(!$result){ echo "SQL语句有误<br>"; echo "ERROR:".$mysqli->errno."|".$mysqli->error; exit; } if($mysqli->affected_rows > 0){ echo "有行数被影响<br>"; } echo "最后自动增长的ID:".$mysqli->insert_id; $mysqli->close();