使用php时出现了no database selected的问题 求大神帮助
我在myadminphp中创建了名为flash的数据库
下面是我的php代码
回复讨论(解决方案)
no database selected 没有数据库被选择
很明显,你在没有指明数据库的情况下就对表进行了操作
可是你看 我下面的代码 我不是指明了 是“flash”数据库吗
no database selected 没有数据库被选择
很明显,你在没有指明数据库的情况下就对表进行了操作
可是你看 我下面的代码 我不是指明了 是“flash”数据库吗
很遗憾,根本就看不见你的图
很遗憾,根本就看不见你的图
啊 那我发文本吧
$username=$_POST['username'];
$userage=$_POST['userage'];
$usergender=$_POST['usergender'];
echo "用户姓名:".$username."
";
echo "用户年龄:".$userage."
";
echo "用户性别:".$usergender."
";
$host='127.0.0.1';
$root='root';
$pwd='';
$con=mysql_connect($host,$root,$pwd);
if($con==false){
echo "连接数据库失败!";
}else{
mysql_query("set name'utf8'");
mysql_select_db("flash");
$sql="INSERT INTO test(name,age,gender)
VALUES('$username','$userage','$usergender')";
if(!mysql_query($sql,$con)){
die('Error:'.mysql_error());
}
echo "添加一条记录";
mysql_close($con);
}
mysql_select_db("flash"); 需要放在mysql_query之前,以下两句交换一下位置就可以了。
mysql_select_db("flash"); // 先select db
mysql_query("set names 'utf8'"); // 再set names
mysql_query("set name'utf8'");
mysql_select_db("flash");
上面两个语句调换下位置,先选择数据库再set names

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