What considerations should be taken into account when implementing a centralized logging system for multiple PHP processes?

When implementing a centralized logging system for multiple PHP processes, considerations should be taken to ensure that logs from each process are properly identified and organized. This can be achieved by including unique identifiers in each log entry, such as process IDs or timestamps. Additionally, the logging system should be scalable to handle the volume of logs generated by multiple processes and should have proper error handling to prevent log loss.

<?php
// Generate a unique identifier for each PHP process
$process_id = uniqid();

// Log an entry with the process ID included
$log_message = "This is a log message from process $process_id";
file_put_contents('centralized_log.txt', $log_message . PHP_EOL, FILE_APPEND);
?>