Question

I have a one textbox. It name is example.

<input type="text" name="example"/>

I want to check, any data is coming from example or not.
I tried use code as below:

<?php
if(empty($_POST["example"]))
{
      echo "You need to enter any text to example box.";
}
?>

But this code is printing,when I enter the page is first.
I want to see printed data, only when click submit.

Answer 1

<?php
if(isset($_POST['example']) && empty($_POST['example']))
{
      echo "You need to enter any text to example box.";
}
?>