//建一个连接,造一个连接对象
$db = new MySQLi("localhost","root","123","mydb");
//判断是否出错
/*if(mysqli_connect_error())
{
echo "连接失败!";
exit;
}*/
mysqli_connect_error()?die("连接失败"):"";
//写SQL语句
$sql = "select * from Info";
//执行SQL语句,返回结果集对象
$reslut = $db->query($sql);
//从结果集中读取数据,返回数组
//$attr = $reslut->fetch_all(); //读取所有数据,返回索引二维数组
//$attr = $reslut->fetch_array(); //读取当前指针指向的数据,返回索引关联都存在的数组
//$attr = $reslut->fetch_assoc(); //返回关联数组
//$attr = $reslut->fetch_row(); //返回索引数组
//$attr = $reslut->fetch_object(); //返回对象
/*$arr = array();
while($attr = $reslut->fetch_row())
{
array_push($arr,$attr);
}
var_dump($arr);*/
//造连接对象
$db = new MySQLi("localhost","root","123","mydb");
//写SQL语句
$sql = "insert into info values('p003','张三','1','n001','1990-2-3')";
//执行SQL语句
$result = $db->query($sql);
/*if($result)
{
echo "执行成功!";
}
else
{
echo "执行失败!";
}*/
//$result->fetch_row();
谨防mysql注入攻击