How can headers already sent error be resolved in PHP scripts, especially when dealing with session management?

Headers already sent error in PHP scripts can be resolved by ensuring that no output is sent to the browser before calling functions that modify headers, such as session_start(). To fix this issue, make sure there is no whitespace or any other content before the opening <?php tag in your PHP files. Additionally, avoid using functions like echo or print before session_start(). 

&lt;?php
ob_start(); // Start output buffering
session_start(); // Start the session
?&gt;

Keywords

headers_sent output buffering ob_start session_start session_write_close

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