$str = "select * from table where name=\$user\" and pass=\"$password\");
should be$str = "select * from table where name=\"$user\" and pass=\"$password\";or
$str = "select * from table where name='$user' and pass='$password'";
should be$str = "select * from table where name=\"$user\" and pass=\"$password\";or
$str = "select * from table where name='$user' and pass='$password'";
$str = "select * from table where name=\"$user\" and pass=\"$password\"";or$str = "select * from table where name='$user' and pass='$password'";
$str = "select * from table where name=\$user\" and pass=\"$password\";
/\
此处少一个"如果还不行,试着用 $login_name = $info['name']; 调用