if elif switch php

<?php
header("Content-type: text/html; charset=utf-8");
echo "<p>Exemplo estrutura if elif";
echo "<br>";
$i = 1;

if($i == 0){
    echo "I e iqual a 0";
}elseif ($i == 1) {
    echo "I e iqual a 1";
}elseif ($i == 2) {
    echo "I e iqual a 2";
}

echo "<p> Utilizando switch</p>";

$i = 1;

switch ($i) {
    case 0:
      echo "I e iqual a 0";
      break;
    case 1:
      echo "I e iqual a 1";
      break;
    case 2:
      echo "I e iqual a 2";
      break;
}
//group https://www.facebook.com/groups/353340335260087/
//irc.vircio.org #brasil #sampa
 ?>