Script PHP pour déterminer si la lettre Y est une consonne ou une voyelle

<?php

echo "<br />";

$firstname = "BARBARA";
$middlename = "ANN";
$lastname = "KELLY";

echo "Name : ".$firstname." ".$middlename." ".$lastname;
echo "<br />";
$lengthfirstname = strlen($firstname);
$lengthmiddlename = strlen($middlename);
$lengthlastname = strlen($lastname);

echo "Letters in First Name : ".$lengthfirstname."<br />";
echo "Letters in Middle Name : ".$lengthmiddlename."<br />";
echo "Letters in Last Name : ".$lengthlastname."<br />";
echo "<br />";

$vowels = array('A', 'E', 'I', 'O', 'U');

$firstnamevoweltotal=0;
$firstnameconsonanttotal = 0;
echo "For first name $firstname we have :"."<br />";
for ($i = 0; $i < $lengthfirstname; ++$i)
{
  if (in_array($firstname[$i], $vowels))
  {
   echo "vowel ".$firstname[$i]." at position ".($i+1)."<br />";
   $firstnamevoweltotal = $firstnamevoweltotal + 1;
  }
  else
  {
   echo "consonant ".$firstname[$i]." at position ".($i+1)."<br />";
   $firstnameconsonanttotal = $firstnameconsonanttotal +1;
  }
}

echo "<br />";
echo "Total Consonants in First Name : ".$firstnameconsonanttotal."<br />";
echo "Total vowels in First Name : ".$firstnamevoweltotal;

echo "<br /><br />";

$middlenamevoweltotal=0;
$middlenameconsonanttotal = 0;
echo "For middle name $middlename we have"."<br />";
for ($i = 0; $i < $lengthmiddlename; ++$i)
{
  if (in_array($middlename[$i], $vowels))
  {
   echo "vowel ".$middlename[$i]." at position ".($i+1)."<br />";
   $middlenamevoweltotal = $middlenamevoweltotal + 1;
  }
  else
  {
   echo "consonant ".$middlename[$i]." at position ".($i+1)."<br />";
   $middlenameconsonanttotal = $middlenameconsonanttotal +1;
  }
}

echo "<br />";

echo "Total Consonants in Middle Name : ".$middlenameconsonanttotal."<br />";
echo "Total vowels in Middle Name : ".$middlenamevoweltotal;

echo "<br /><br />";

$lastnamevoweltotal=0;
$lastnameconsonanttotal = 0;
echo "For last name $lastname we have"."<br />";
for ($i = 0; $i < $lengthlastname; ++$i)
{
  if (in_array($lastname[$i], $vowels))
  {
   echo "vowel ".$lastname[$i]." at position ".($i+1)."<br />";
   $lastnamevoweltotal = $lastnamevoweltotal + 1;
  }
  else
  {
   echo "consonant ".$lastname[$i]." at position ".($i+1)."<br />";
   $lastnameconsonanttotal = $lastnameconsonanttotal +1;
  }
}

echo "<br />";

echo "Total Consonants in Last Name : ".$lastnameconsonanttotal."<br />";
echo "Total vowels in Middle Name : ".$lastnamevoweltotal;

?>