<?php
// Fill up array with names
$names = array ("Anna", "Brittany", "Cinderella", "Diana", "Eva", "Fiona", "Geraldine", "John", "Bob", "Joe", "Joseph", "Cindy");

// get the q parameter from the URL
$q = $_GET["q"];

// lookup all hints from array if length of q > 0
if (strlen ($q) > 0) {
    $hint = "";
    for ($i=0; $i<count($names); $i++) {
        if (strtolower($q) == strtolower(substr($names[$i], 0, strlen($q)))) {
              if ($hint == "") {
                  $hint = $names[$i];
              } else {
                  $hint = $hint . ", " . $names[$i];
              }
        }
    }               
}

// Set output to "no suggestion" if no hint was found
// or to correct value
if ($hint == "") {
    $response = "no suggestion";
} else {
    $response = $hint;
}

// output the response
echo $response;

?>