How to display an Array under alphabetical letters using PHP?

Question

I have an array that already contains all it\'s values in alphabetical order:

Alligator
Alpha
Bear
Bees
Banana
Cat
Cougar

Now I just want to li

Answer 1

Iterate through the array and check if the current item starts with another letter than the previous one. If that's the case print your "A ---".

$currentLetter = '';
foreach ($list as $item) {
   $firstLetter = substr($item, 0, 1);
   if ($firstLetter !== $currentLetter) {
      echo $firstLetter . "\n---\n";
      $currentLetter = $firstLetter;
   }
   echo $item . "\n";
}