function - true, false

<?php
namespace Codecademy;

// Basic function for true or false condition
function truthyOrFalsy($val){
  if ($val){
    return "True";
  } else {
    return "False";
  }
}

echo truthyOrFalsy(2);
echo "\n\n";
echo truthyOrFalsy(null);

// using readable 'or' 'and' operators
$is_admin = FALSE;
$is_user = TRUE;
if ($is_admin or $is_user){  //can also use ||
  echo "You can change the password.\n";
}

$correct_pin = TRUE;
$sufficient_funds = TRUE;
if ($correct_pin and $sufficient_funds){  // or use &&
  echo "You can make the withdrawal.";
}