Why doesn't a link containing php passed through AJAX work?

Question

JavaScript

Why doesn't a link containing php passed through AJAX work?
Those. this one works 1a href=" www.xxx.ru " target="_blank"
And this one works too <?php echo("123"); ?> .
But there is no such
1a href="<?php echo add_query_arg('do_product_action', 'redirect', get_permalink($post))?"
?

Answer 1

wp-kama.ru/function/add_query_arg
Read and see right away what it displays for you just like that!