<?php
    $array = array("foo", "bar", "hello", "world");
    for($i=0; $i<count($array); $i++) {

       echo "<p id="$i">This is paragraph $i.</p>";

    }
?>

<%
  var array = new string[]{"foo", "bar", "hello", "world"};
  Response.ContentType = "text/html";
  for(int i = 0; i < array.Length; i++)
  {
  Response.Write(string.Format("<p id="{0}">This is paragraph {0}.</p>",i));
  }
  %>

<%
   var array = new string[]{"foo", "bar", "hello", "world"};
   Response.ContentType = "text/html";
   for(int i = 0; i < array.Length; i++) {
      Response.Write(string.Format("<p id="{0}">This is paragraph {0}.</p>",i));
   }
%>