代码在此:
$db=new mysqli('localhost','visitor','visitor123','answers');
报错说Warning: mysqli::mysqli() [mysqli.mysqli]: (42000/1049): Unknown database 'answers'
Error:can't connect to the database
有这个数据库answers的,真的有!visitor也有对它的select权限
Connected successfully
但还是报错:Unknown database
Connected successfully
但还是报错:Unknown database
检查这里!
<?php
$link = mysql_connect("localhost", "mysql_user", "mysql_password")
or die("Could not connect: " . mysql_error());
print ("Connected successfully");
mysql_close($link);
?>