How Can I Retrieve a Username from a Database Using a Given Numerical ID?

Finding a Username Associated with a Given ID

In the realm of database querying, you may encounter situations where you need to retrieve a username based on a numeric ID. To accomplish this task, proper execution of a SELECT query is crucial. Here's a comprehensive approach to retrieving the desired username:

1. Prepare the Query:
   Construct an SQL SELECT statement with placeholders representing the variable values. In this case, you're extracting the username associated with a specific ID.
2. Bind Parameters:
   Prepare the query statement using mysqli_prepare() and bind the ID variable to the placeholder using mysqli_bind_param(). This prevents SQL injection vulnerabilities.
3. Execute the Query:
   Execute the prepared statement using mysqli_execute(). This initiates the query and fetches the results from the database.
4. Retrieve Results:
   Retrieve the result set from the executed statement using mysqli_get_result(). This returns a mysqli_result object containing the query output.
5. Fetch Data:
   Extract the record associated with the ID using mysqli_fetch_assoc(). This converts the record into an associative array, making it easy to retrieve the username.
6. Store in Session:
   Finally, store the retrieved username into the $_SESSION['name'] variable to preserve it in the user's session.

Code Snippet:

$sql = "SELECT * FROM users WHERE>

By following these steps, you can effectively retrieve the username associated with a given numerical ID and store it securely in the user's session. This knowledge empowers you to tackle similar data retrieval tasks with confidence and efficiency.

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