How can PHP headers be effectively used for redirection without causing errors or output conflicts?

When using PHP headers for redirection, it is important to ensure that no output has been sent to the browser before sending the headers. To avoid errors or output conflicts, it is recommended to place the header function at the beginning of the PHP script, before any HTML or whitespace. This ensures that the headers are sent before any content, preventing conflicts. 

<?php
// Place the header function at the beginning of the script
header("Location: http://www.example.com");
exit; // Make sure to exit after sending headers to prevent further execution
?>

Keywords

PHP headers redirection errors output conflicts

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