What potential issues can arise when using the header() function for redirects in PHP?

One potential issue that can arise when using the header() function for redirects in PHP is the "headers already sent" error. This error occurs when there is any output (even whitespace) before the header() function is called. To solve this issue, you can use ob_start() to buffer the output and prevent any premature output before the header() function. 

<?php
ob_start();
// Your PHP code here

header("Location: https://www.example.com");
exit();

Keywords

header function redirects PHP HTTP headers server-side redirects

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