How can error reporting be utilized effectively in PHP to troubleshoot issues like headers already sent?

When encountering the "headers already sent" issue in PHP, it usually means that there is whitespace or output being sent before PHP sends headers. To troubleshoot this, you can enable error reporting in PHP to display warnings and notices about this issue. 

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Your PHP code here
?>

Keywords

error reporting headers already sent output buffering ob_start ob_end_clean

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