PHP的扩展类 mysqli_stmt：预处理类

[code]     [code] <?php

header("Content-Type:text/html; charset=utf8");

$mysqli = new mysqli("localhost","root","1234","test2");

if($mysqli->connect_error)

{

die("连接数据库出错：".$mysqli->connect_error);

}

// 增

// $sql = "insert into userinfo(uName,uAge,uPwd) values(?,?,?);";

// 删

// $sql = "delete from userinfo where id=?;";

// 改

// $sql = "update userinfo set uAge=? where Id=?;";

// 查

// $sql = "select top(?) uName,uAge,uPwd from userinfo where id>?;";

$sql = "select uname,uage,upwd from test2.userinfo where id>? limit ?,5";

//创建预编译对象

$stmt=$mysqli->prepare($sql);

//按顺序给点位符绑定值(绑定参数)

//s:string,i:int,d:double,b:二进制大数据类型

// 增

// $stmt->bind_param("sis",$uName,$uAge,$uPwd);

// $uName="阿斯顿";

// $uAge=28;

// $uPwd=3557;

// 删

// $stmt->bind_param("i",$Id);

// $Id=25;

// 改

// $stmt->bind_param("ii",$uAge,$Id);

// $uAge=15;

// $Id=26;

// 查

$stmt->bind_param("ii",$Id,$limitNum);

$Id=10;

$limitNum=5;

$stmt->bind_result($uName,$uAge,$uPwd);

//执行

$result = $stmt->execute();

if(!$result) echo "执行语句出错：".$stmt->error;

 while ($stmt->fetch()){

echo "$uName----$uAge----$uPwd\n";

}

// echo "最后一次添加的数据ID：".$stmt->insert_id."\n";

// echo "受影响行数".$stmt->affected_rows."\n";//只返回最后一次执行sql受影响的行数

$stmt->close();

?>