What are the potential reasons for the header("Location: ../") function not working in certain cases in PHP?

The header("Location: ../") function may not work in certain cases in PHP due to output being sent to the browser before the header function is called. To solve this issue, ensure that there is no output (including whitespace) before the header function call. You can also use the ob_start() function at the beginning of the script to buffer the output and prevent any premature output. 

<?php
ob_start();
// your code here

header("Location: ../");
exit();
?>

Keywords

header Location PHP redirect path

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