Question

How will you convert the returned API into an XML object?

(a) SimpleElement()

(b) SimpleXMLElement()

(c) XMLElement()

(d) CovertXML()

This question was addressed to me in a national level competition.

This question is from Accessing the WebPagetest API in portion Sockets of JavaScript

Answer 1

The correct option is (b) SimpleXMLElement()

For explanation I would say: file_get_contents() is the preferred way to read the contents of a file into a string. It will use memory mapping techniques if supported by your OS to enhance performance. The API returned by the method file_get_contents() can be converted into an XML object using the method SimpleXMLElement().