- var_dump: documentation ( source)
- class_exists: documentation ( source)
<?php
if(!class_exists('SimpleXMLElement')) die("Bonkers");
$xml = new SimpleXMLElement('<xml><node>foo</node></xml>');
var_dump($xml->node);
var_dump(gettype($xml->node));
var_dump(isset($xml->node));
var_dump(empty($xml->node));
var_dump(is_null($xml->node));
var_dump(count($xml->node));
var_dump(count($xml->node->children()));
echo "----------------------\n";
var_dump(gettype($xml->node->foo));
var_dump(isset($xml->node->foo));
var_dump(empty($xml->node->foo));
var_dump(is_null($xml->node->foo));
var_dump(count($xml->node->foo));
var_dump(count($xml->node->foo->children()));