How does the placement of the closing PHP tag affect the functionality of readfile() and exit() in PHP scripts?

Placing the closing PHP tag after calling readfile() or exit() can cause issues with headers being sent prematurely, resulting in unexpected behavior or errors. To solve this issue, simply avoid placing the closing PHP tag at the end of the file if you are using readfile() or exit(). 

<?php
readfile("file.txt");
exit();
// No closing PHP tag needed here

Keywords

closing PHP tag readfile() exit() functionality scripts

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