How can the structure of a PHP script be optimized to avoid conflicts with sending headers and starting sessions?

To avoid conflicts with sending headers and starting sessions in a PHP script, it's important to ensure that no output is sent to the browser before calling functions like session_start() or header(). To optimize the structure, it's recommended to place all session-related functions at the very beginning of the script, before any HTML or whitespace. Additionally, using output buffering functions like ob_start() can help prevent accidental output before headers are sent. 

<?php
ob_start();
session_start();

// Your PHP code goes here
?>
<!DOCTYPE html>
<html>
<head>
    <title>Optimized PHP Script</title>
</head>
<body>
    <!-- Your HTML content goes here -->
</body>
</html>
<?php
ob_end_flush();
?>

Keywords

PHP script optimization conflicts headers sessions

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