Inserting an if statment

[ade234uk]

$names .= ' . $details['name'] . '<br>'.
' $details['age'] .'<br>'; 

Im fiddling with a script that outputs information on to another page. I am trying to add an if statement in the middle of the code above, so if the age is more than 20, I want to display the word old when $names is outputted.

I hope this makes some sort of sense.

[Xager]

$names .= $details['name'] . '<br>
'; 
if($details['age'] > 20){
    $names .= 'old';
}
else{
    $names .= $details['age'];
}