Are there best practices in PHP for managing access to a database record to prevent conflicts or duplications?

To prevent conflicts or duplications when accessing a database record in PHP, it is recommended to use transactions and locking mechanisms. By using transactions, you can ensure that a series of database operations are treated as a single unit of work, either all succeeding or all failing. Additionally, you can use locking to prevent multiple users from accessing or modifying the same record simultaneously. 

<?php

// Establish a database connection
$pdo = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');

// Begin a transaction
$pdo->beginTransaction();

// Lock the specific record for update
$pdo->query('SELECT * FROM your_table WHERE id = 1 FOR UPDATE');

// Perform your database operations here

// Commit the transaction
$pdo->commit();

?>

Keywords

concurrency control transactions locking isolation levels database constraints

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