Sorry for replying to my own post, but here is the manual page of PHP
about mysql functions: http://www.php.net/mysql and specificly to
mysql_connect: http://www.php.net/manual/en/function.mysql-connect.php
Nuno Pereira wrote:
Martin Olsson wrote:
Hi,
I'm using PHP/MySQL to development a web-based application. I just
upgraded both PHP and MySQL and I noticed that some of my MySQL calls
are now broken and I don't see any easy way to fix them.
My script calls mysql_connect() and does very careful error checking.
It's important that I can tell apart invalid hostname errors from say
incorrect username/password errors. Previously, I did this by checking
mysql_errno(), where 2003 would mean bad hostname and 1045 would
indicate bad username/password.
In the latest PHP/MySQL bundle I downloaded this functionality changed
though. In this new version, whenever I feed it with a invalid
hostname it will fallback to localhost (where I actually have a
database running) and then it will subsequently report a 1045 instead
of a 2003.
Oddly enough, the exact error message (mysql_error) I get attached to
this 1045 says; mysql_error()==
Access denied for user 'ODBC'@'localhost' (using password: NO)
This means that, the user "ODBC" (without quotes) on mysql machine
"localhost" (without quotes, again), can't login to the server without
using a password (the part of "(using password: NO)"). The error number
is correct, bacause you have invalid username/password on that server
(for user ODBC).
Now, what is this about? I sure did not feed it with a username
'ODBC'. I do use Windows 2005 but how could ODBC possibly be related
to this? (I assume ODBC means that [Microsoft?] database connection
thing, I'm not sure exactly what is it; i've never used it). For the
record, the actual username I specified in the call with the invalid
hostname was "root".
It seems that you did not specified correctly the username to access the
server, and without password.
The correct syntax is, in your case,
$link = mysql_connect("localhost", "root", "mysql_root_password");
I strongly sugested that you provide a password to root, and login as
another user with your PHP application, obviously with a password. So,
in that case, change the mysql_connect() invocation to something like this:
$link = mysql_connect("localhost", "php_app_user", "user_password");
(Obviously, replace user_password with the password for your
php_app_user of your mysql server).
---
So, the question is how can I tell these errors apart?
Why is mysql_error() reporting back that it tried to connect to
localhost as user "ODBC" when I asked it to connect to an invalid
hostname as user "root" ?!?!
sincerly,
martin
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Nuno Pereira
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