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@ 2014-03-28T18:32:19Z

<?php

$names = array('Anderson','Beresford','Donovan','Emerson','Graham');

$alphabet = array();
$previous_letter = '';

foreach($names as $value) {
  if($value[0] != $previous_letter) {
    $alphabet[] = $previous_letter = $value[0];
  }
}

print_r($alphabet);

?>

Output
Performance
VLD
References
Branches

print_r: documentation ( source)

preferences:dark modelive previewkey bindings

144.67 ms | 404 KiB | 5 Q