Why is My PHP Code Getting a Database Connection Error Even Though the Database Exists in phpMyAdmin?

PHP Database Connection Error

When connecting to a MySQL database in PHP, you may encounter an unknown database error. This can be confusing, especially if the database exists in PHPMyAdmin.

Possible Causes

There are two main possibilities for this error:

1. Spelling Error: The database name you are using in PHP may not be spelled correctly. Double-check the name and ensure it matches the name in PHPMyAdmin.
2. Different Database Connections: PHPMyAdmin and PHP may be connecting to different database servers. This can occur if you have multiple database servers installed on your computer.

Proof

To verify which issue you are facing, use the following query in PHPmyAdmin:

show databases;

Now, run the same query in PHP using PDO or mysqli. Compare the output of both queries.

• If the databases listed are different, you are connecting to different servers.
• If the database names are spelled differently, you have a spelling error.

Solving the Problem

• Spelling Error: Correct the spelling of the database name in your PHP code.
• Different Database Connections: Check the configuration file in PHPMyAdmin to ensure it is connecting to the correct server. If you have multiple servers, you may need to specify the correct hostname or port in your PHPMyAdmin configuration.

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