title: Form field and tags PHP
body: <p>I don't what the thing is actually called but I try to descripe.</p>
  
  <p>So I have form with couple fields and textarea. Now what I want is that user could add "tags" to textarea and those tags would then be replaced with variables from db/array in code. So for example if the user writes to textarea "Hello how are you {name} today?" then when the form is saved, the {name} would then be replaced with some string from array. How to do it or what is this method called so I could google and learn more about it?</p>