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Solution: Performing Data Operations with PHP 8 Extensions

Explore how to use PHP 8 extensions for data operations by working with XML family tree structures via SimpleXML and performing string manipulation tasks using the mbstring extension. Understand the code implementation to read, iterate, and modify data without recursion and handle multibyte encodings efficiently.

The code widgets below contain the solutions to the challenges. We will also go through a step-by-step explanation of the solutions.

Solution to Task 1

Use the SimpleXML extension concepts to implement the hierarchy tree of the family with PHP.

Tree-structured data
Tree-structured data

Question 1

Please implement the XML file structure of the above family tree structure.

Solution code

XML
<!-- Start writing below -->
<?xml version="1.0" encoding="UTF-8"?>
<family>
<branch name="Stephan">
<descendent gender="M">Alex</descendent>
<spouse gender="F">Mary</spouse>
<branch name="Alex">
<descendent gender="M">Costa</descendent>
<spouse gender="F">Bathesda</spouse>
<descendent gender="F">Julia</descendent>
<spouse gender="M">Micheal</spouse>
<descendent gender="M">John</descendent>
<spouse gender="F">Lilli</spouse>
<branch name="John">
<descendent gender="M">Jonathan</descendent>
</branch>
</branch>
</family>

Code explanation

  • <family> is the root element, representing the entire family tree.

  • <branch> elements represent individuals within the family. Each branch has a name attribute specifying the individual’s name.

  • <descendent> elements represent male ...