How to write function replace_text?

Question

PHP

Good afternoon.
I need help, there is a site - zhidkov-art.com/portfolio-item/artem-angelina/
I need to create a function replace_text to replace links (starting with fex.net/get/…) that I post in posts, automatically chained to
me thank you.

Answer 1

function replace_text($text) {
    return preg_replace('/\s?(fex\.net\/get\/.*?)(\s|$)/', '<img src="//$1" alt="">', $text);
}