Counter in php for issuing files from a directory?

Question

WordPress

There are about a dozen of these cards. There is a separate file for download for everyone. Cards appear through a cycle in wp custom fields, and in this case, only one file can be registered as an absolute. You need something like counter-increment in css - so that the file is pulled from the folder in order for each of them. Maybe you can do without php? Thanks for answers.

<a href="<?php echo esc_url( get_template_directory_uri() ); ?>/hhhh/1.pdf" class="about-item__btn btn" download></a>

Answer 1

Maybe you can do without php?

How do you plan to do without php if WP is written in php and you need to increment the value to get the file.

Cards appear through a loop in wp custom fields

You need to initialize the variable outside of the loop. For example. $i = 0;
Then, inside the loop, you need to increment the variable $i++;
Well and substitute the value of the variable in the field
Something like this:

<a href="<?php echo esc_url( get_template_directory_uri() ); ?>/hhhh/<?php $i.'.pdf'?>" class="about-item__btn btn" download></a>