Wordpress how to check thumbnail image size when creating a post?

Question

PHP

Hello, friends!
Again I turn to you with a question. To begin with, I would like to give an explanation because of what such a need arose.
In general, the site was created on Wordpress. To be honest, I didn't know what Wordpress was before. It had to be done.
There on the site there are regular posts that are a picture + text. The problem is that the User usually does not bother about the size and proportion of the picture : he (she) does not see the difference between a 10MB picture with a 4:7 aspect ratio and a 300 Kb 3:4 picture. As a result, you yourself understand that some pictures are stretched and others are compressed too much .
On the Internet I found a couple of functions limiting the size of the image which should be included in funtions.php , but it seems to me that there should be other solutions in the form of a plugin.
Question: what would you advise?
Sincerely ,
Almik

Answer 1

I am using this code:

add_theme_support('post-thumbnails'); // Включаем поддержку миниатюр
set_post_thumbnail_size(80, 80); // Задаем размеры миниатюре

Answer 2

Use the Imsanity plugin - it will save you from problems with huge images and save a lot of space on the site. As for small images, the first thing that comes to mind is to add a 3rd argument (true) to set_post_thumbnail_size( X, Y, true ), this will force WordPress to do the right crop. And then using CSS make the image rubbery, drag it to 100%. This will always fill the right space, although the quality of pictures that are too small, of course, will not be so hot.