php – Compulsory Fill Radio html

Question:

How do I place this mandatory field:

<p><h5><strong>Estado</strong></h5>
 <p>&nbsp;&nbsp;&nbsp; <input type="radio" name="Estado" value="Concluído">Concluído 

Answer:

Just add the required attribute to the input tag. It would be something like:

<input type="radio" name="Estado" value="Concluído" required>Concluído