Database connection problems

The MySQL password has been changed for Wamp2.0 installed in the local test for database connection problems. However, when installing the website, the following error occurs: Warning: mysql_query (): supplied argument is not a valid MySQL-Link resource in... the corresponding code is mysql_query ($ SQL, $ link) or die (mysql_error (); my configuration file has changed the password.

Reply to discussion (solution)

Obviously, $ link is not a resource.

Check what the code for connecting to MySQL is above. the user name and password are correct.

Paste the specific code to see

All of them are correct ..

The error code is
Mysql_query ($ SQL, $ link) or die (mysql_error (); // send an SQL request for creating a member table @ zy205817

$ Link? Generation? What is it ??? Outbound? Look.

$ Link = mysql_connect ($ host, $ user, $ pass );

$ Link = mysql_connect ($ host, $ user, $ pass) or die (mysql_error ());

Changed or displayed this error.

Paste your code

The configuration information has been changed .. However, the database does not have data, but the test file is correctly displayed.

Generation ?? Yes ??.

What are you using ?? Is the file system positive ?, You ?? Ratio? Where? Different.

I want to see you
$ Link = mysql_connect ($ host, $ user, $ pass) or die (mysql_error ());
The error message Warning: mysql_query (): supplied argument is not a valid MySQL-Link resource in... row number appears.
Code

If you don't see the problem, follow #14 to post the code and check out your require '20-1. php'. what is it?

1. run cmd to test mysql connection.
2. write a php script to test the connection code.

Solved. it is my space error.