How can output buffering be used to prevent issues with sending headers in PHP?

Output buffering can be used in PHP to prevent issues with sending headers by capturing all output before it is sent to the browser. This allows headers to be set at any point in the script without causing errors related to output being sent before headers. By starting output buffering at the beginning of the script and then flushing the buffer after setting headers, you can ensure that headers are sent properly. 

<?php
ob_start();

// Code that may generate output

header('Content-Type: text/html');

// More code that may generate output

ob_end_flush();

Keywords

output buffering headers PHP ob_start ob_end_flush

Related Questions