How does Output Buffering affect the occurrence of the error "Warning: Cannot modify header information - headers already sent" in PHP?

Output Buffering in PHP can help prevent the "Warning: Cannot modify header information - headers already sent" error by allowing you to buffer the output before sending it to the browser. This error occurs when you try to modify headers after some content has already been sent to the browser. By using output buffering, you can capture all output and headers before they are sent, preventing this error from occurring. 

<?php
ob_start(); // Start output buffering

// Your PHP code here

ob_end_flush(); // Flush the output buffer
?>

Keywords

Output Buffering header information headers already sent error PHP

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