PHP XML foreach loop

<?php
$xmlDoc = new DOMDocument();
$xmlDoc->load("checkbox array.xml");

$x = $xmlDoc->documentElement;
foreach ($x->childNodes AS $item)
{
echo $item->nodeName . " = " . $item->nodeValue . "
";
}
?>

Load XML and Save XML - PHP

<?php
$xmlDom = new DOMDocument();
$xmlDom->load("enthiran.xml");

print $xmlDom->saveXML();
?>

PHP array shift

<?php
$stack = array("ajax", "php", "javascript", "mysql");
$fruit = array_shift($stack);
print_r($stack); // first value of the array off
?>

PHP array difference

<?php    
$array1 = array("a" => "php", "string", "array", "PHP");   
$array2 = array("b" => "php", "PHP", "string");    
$result = array_diff($array1, $array2);   
print_r($result);
?>