How to get post author name in WordPress?

Use below code in single.php or the relevant page you want author name

<?php get_the_author_meta( 'display_name', $author_id ); ?>

This should work like charm

<?php echo get_the_author(); ?>

For more detailed information. https://codex.wordpress.org/Function_Reference/get_the_author

Add This code in single-post.php

<?php echo get_the_author(); ?>

I hope this will work !!

You can use get_the_author_meta(), to get author data.

echo get_the_author_meta('display_name', $author_id);

Hope this helps!

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