<? include_once("class.SortedList.php"); ?>
<html>
<head>
<title></title>
</head>
<body>
<?php
function comp ($num1, $num2)
{
if ($num1< $num2) return SMALLER;
if ($num1> $num2) return BIGGER;
if ($num1==$num2) return EQUAL;
}
$numbers = array(79,41,41,3,80,90,74,24,83);
$mylist = new SortedList("comp");
echo "I'm about to add ".implode(", ", $numbers)." to the list.<br>";
foreach ($numbers as $num)
{
$mylist->add($num);
}
$cursor =& $mylist->head->getNext();
echo "The List has ".$mylist->size()." elements";
echo "<h3>Iterating Forward (increasing order)</h3>";
while ($cursor->getNext() != NULL){
echo $cursor->getNodeValue();
echo "<br>";
$cursor=& $cursor->getNext();
}
echo "<h3>Iterating Backwards (decreasing)</h3>";
$cursor =& $mylist->tail->getPrevious();
while ($cursor->getPrevious() != NULL){
echo $cursor->getNodeValue();
echo "<br>";
$cursor=& $cursor->getPrevious();
}
$findme = 24;
echo "<h3>Now I'll try to find an element</h3>";
$gotit = $mylist->fetchElement($findme);
if ($gotit)
echo "I've found: ".$gotit;
else
echo $findme." is not on the list";
echo "<h3>Now i'll erase a caouple of elements and show the resulting list</h3>";
$toerase = array(3, 41, 80, 10);
echo "Deleting ".implode(", ", $toerase)."<br>";
foreach($toerase as $e)
{
$mylist->deleteElement($e);
}
echo "The list contains ".$mylist->size()." elements";
$cursor =& $mylist->head->getNext();
echo "<h3>Iterating Forward (increasing order)</h3>";
while ($cursor->getNext() != NULL){
echo $cursor->getNodeValue();
echo "<br>";
$cursor=& $cursor->getNext();
}
echo "<h3>Iterating Backwards (decreasing)</h3>";
$cursor =& $mylist->tail->getPrevious();
while ($cursor->getPrevious() != NULL){
echo $cursor->getNodeValue();
echo "<br>";
$cursor=& $cursor->getPrevious();
}
?>
</p>
</body>
</html>
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