Ready for it? Then here's the php code to be copied and pasted once you have changed the copyright text relevant to your website:
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add_filter( 'generate_copyright','tu_custom_copyright' );
function tu_custom_copyright() {
?>
© 2022 “Your Website“ | All Rights Reserved
<?php
}
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Once you have changed the copyright text relevant to your website, and iserted the code where shown prevously, and updated the file, you should see this when you preview your website posts and pages :