What potential issues can arise when running multiple PHP scripts in parallel that interact with the same database table?

When running multiple PHP scripts in parallel that interact with the same database table, potential issues such as race conditions, data inconsistency, and deadlocks can arise. To solve this problem, you can use database transactions and locking mechanisms to ensure that only one script can access and modify the table at a time. 

<?php

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');

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

// Lock the table for writing
$pdo->exec('LOCK TABLES table_name WRITE');

// Perform database operations here

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

// Unlock the table
$pdo->exec('UNLOCK TABLES');

// Close the database connection
$pdo = null;

?>

Keywords

concurrency race condition deadlock database locking transaction isolation

Related Questions