Is it possible to reliably start a session within a database query loop in PHP?

When starting a session within a database query loop in PHP, it is important to ensure that the session is started before any output is sent to the browser. This can be achieved by starting the session at the beginning of the script, outside of the loop. By doing this, the session will be started only once and can be used throughout the script without any issues. 

<?php
// Start the session at the beginning of the script
session_start();

// Database connection code

// Query loop
while ($row = mysqli_fetch_assoc($result)) {
    // Use session variables within the loop
    $_SESSION['user_id'] = $row['id'];
    // Other database query operations
}

// End of script
?>

Keywords

PHP session_start database query loop reliability

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