The XML document below has been parsed into $xml via SimpleXML. How can the value of <foo> tag accessed?
<?xml version=’1.0′?>
<document>
<bar>
<foo>Value</foo>
</bar>
</document>
A . $xml->bar[‘foo’]
B . $xml->bar->foo
C . $xml[‘document’][‘bar’][‘foo’]
D . $xml->document->bar->foo
E . $xml->getElementByName(‘foo’);
Answer: B