How can the issue of outputting a 1 at the end of the included HTML content be resolved in the given code snippet?

The issue of outputting a 1 at the end of the included HTML content can be resolved by removing the closing PHP tag '?>' at the end of the included file. This is because when the PHP script ends, any whitespace or characters after the closing PHP tag will be sent as output. By removing the closing PHP tag, we ensure that only the desired HTML content is included without any additional characters. 

<?php
include 'header.php';
?>
<!-- HTML content of the included file goes here -->
<?php
include 'footer.php';

Keywords

PHP include HTML output resolution

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