Zend Certified PHP Engineer (ZCPE) Practice Test

In the context of querying XML with XPath in PHP, if the correct output is "Dido," it suggests that within the queried XML structure, there is a node or element that contains the value "Dido" as a result of the XPath query.

When working with XML and XPath, the code typically involves loading an XML document, creating a new XPath object, and then executing a query against the XML structure to extract specific data. The XPath query would be designed to locate nodes (or values) that match certain criteria.

In this scenario, if "Dido" is the retrieved value, it implies that the XPath expression used successfully matched a node containing that specific name. This could happen if the XML document has a structure where "Dido" is encapsulated within the relevant tags that the XPath query is targeting, such as `<name>Dido</name>` or similar.

The other names (James, Leila, and George) either do not match the XPath query conditions or are placed in a different context within the XML document that is not being retrieved based on the query used.

In essence, understanding the structure of the XML being queried, as well as the appropriate XPath syntax, is crucial in determining how and why "Dido"