We can use PHP 7's null coalesce operator to allow us to check whether our results contain anything, or return a defined text which we can check on the views, this will be responsible for displaying any data.

Let's put this in a file which will contain all the define statements, and call it:

//definitions.php 
define('NO_RESULTS_MESSAGE', 'No results found'); 
 
require('definitions.php'); 
function fetch_all() { 
   ...same lines ... 
   
   $results = $results ??  NO_RESULTS_MESSAGE; 
   return $message;    
} 

On the client side, we'll need to come up with a template to show the list of user profiles.

Let's create a basic HTML block to show that each profile can be a div element with several list item elements to output each table.

In the following function, we need to make sure that all values have been filled in with at least the name and the age. Then we simply return the entire string when the function is called:

function profile_template( $name, $age, $country ) { 
 $name = $name ?? null; 
  $age = $age ?? null; 
  if($name == null || $age === null) { 
    return 'Name or Age need to be set';  
   } else { 
 
    return '<div> 
 
         <li>Name: ' . $name . ' </li> 
 
         <li>Age: ' . $age . '</li> 
 
         <li>Country:  ' .  $country . ' </li> 
 
    </div>'; 
  } 
}