用数据库中的数据替换字符串

I want to replace certain text with data in the database using php eacht time i type a text between this <% and %>. It doesnt have to be this character, i just made this up.

$text='This <%125,150%> is a fine product';

125 is the p_id and 150 is the size of the image.

+--------+--------+--------+
|  p_id  | name   |  img   |
+--------+--------+--------+
|   125  |  Shoe  | h.jpg  |
+--------+--------+--------+

The output has to be this:

This <img src="/h.jpg" width="150" alt="Shoe"> is a fine product.

I think a need to detect the <%125,150%> and extract the 2 values and use this in a function to connect with the MYSQL database to get the values.