What are the implications of not having a unique identifier for a record when updating it in PHP?

Without a unique identifier for a record, updating it in PHP can be challenging as there would be no reliable way to identify the specific record that needs to be updated. One way to solve this issue is to include a unique identifier, such as a primary key, in the database table for each record. This identifier can then be used in PHP to accurately locate and update the desired record. 

// Assuming we have a database table 'users' with a primary key 'id'
// Update a specific user record using their unique identifier
$id = 1; // Unique identifier for the record to be updated
$newName = 'John Doe'; // New name to update

$query = "UPDATE users SET name = '$newName' WHERE id = $id";
// Execute the query using your database connection

Keywords

PHP unique identifier record updating implications

Related Questions