$res=mysqli_query($mysqli,$sql);
//var_dump($res);
while($row=mysqli_fetch_row($res)){
foreach ($row as $val){
echo '-'.$val;
}
echo '<br/>';
}
//释放内存
mysqli_free_result($res);
mysqli_close($mysqli);
?>
2、mysqli 扩展库对 mysql 的 dml 操作
<?php
//使用 mysqli 扩展库对 mysql 的 crud 操作
header("Content-type: text/html;charset=utf-8");
$mysqli = new MySQLi("localhost","root","root","test");
if($mysqli->connect_error){
die("连接失败".$mysql->connect_error);
}
//增加一条记录
//$sql="insert
into
user1
(name,password,email,age)
values
('lucy',md5('lucy'),'lucy@163.com',17)";
//删除一条记录
//$sql="delete from user1 where id =80";
//更新一条记录
$sql="update user1 set age=20 where id=7";
$res=$mysqli->query($sql);
if(!$res){
echo "操作失败".$mysqli->error;
}else{
if($mysqli->affected_rows>0){
echo "成功";
}else{
echo "没有行受影响";