Question:

Suppose you receive a form submitted by a post to subscribe to a newsletter. This form has only one field, an input text field named email. How would you validate whether the field is empty? Print a message "The email cannot be empty" in this case.

Answer:

<?php
if(empty($_POST['email'])){
  echo "The email cannot be empty";
}
?>

In this question, you will be evaluated on your knowledge about forms management and validation. There is not unique answer for this question, but it must be similar to this one.


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