What potential issues can arise from using the "header" function for redirection in PHP?

Potential issues that can arise from using the "header" function for redirection in PHP include headers already sent errors, which occur when there is output before the header function is called. To solve this issue, you can use output buffering to capture any output before sending headers. 

<?php
ob_start(); // Start output buffering

// Your PHP code here

ob_end_clean(); // Clean (erase) the output buffer without sending it to the browser

header("Location: new_page.php");
exit();
?>

Keywords

header function redirection PHP security vulnerability HTTP headers

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