Online PHP editor | refs for n2CsB

<?php $sentence = 'Frank Sinatra'; echo $sentence . "<br/>\n"; echo removeEveryThirdLetter($sentence); function removeEveryThirdLetter($sentence) { $letters = str_split($sentence); foreach($letters as $key => $letter){ if($key > 0 && ($key+ 1) % 3 === 0){ unset($letters[$key]); } } return implode('', $letters); }