使用Ajax VS加载模式使用PHP生成许多模态

i have this question, is it better to load my unique modal by making requets to my db using ajax, or generate as many modals as needed with php inside a loop.

The problem is i'm using a tool that let the user gives style to the text, so at the end it´s way large.

So i wonder which is the "best" or "recommended" way to do it, or if there is another method to do it that i'm missing.