request.php

<?php

// accept a term (keyword)
// respond with a value

$query = $_GET['q'];
// $definition = [
//     "definition" => "A statement of the exact meaning of a word, especially in a dictionary.",
//     "bar" => "A place that sells alcholic beverages",
//     "ajax" => "Technique which involves the use of javascript and xml (or JSON)",
//     "html" => "The standard markup language for creating web pages and web applications.",
//     "css" => "A style sheet language used for describing the presentation of a document written in a markup language.",
//     "javascript" => "A lightweight, interpreted programming language with first-class functions that adds interactivity to your website.",
//     "php" => "A server-side scripting language, and a powerful tool for making dynamic and interactive websites",
// ];

// print "<h3>" . strtoupper($query) . "</h3>";
// print "<p>" . $definition[$query] . "</p>"; 

$xmlData = '<?xml version="1.0" encoding="UTF-8"?> 
<entries> 
<definition name="definition" author="John">
 a statement of the exact meaning of a word, especially in a dictionary.
 </definition>
 <definition name="bar" author="mary">
 a place that sells alcholic beverages.
 </definition>
 <definition name="ajax" author="Kimberly">
 technique which involves the use of javascript and xml.
 </definition>  
 <definition name="html" author="Bob"> 
 The standard markup language for creating web pages and web applications.
 </definition> 
 <definition name ="css" author="Jim"> 
 A style sheet language used for describing the presentation of a document written in a markup language.
 </definition>
<definition name="javascript" author="Yannick LynFatt"> 
A lightweight, interpreted programming language with first-class functions that adds interactivity to your website.
</definition> 
<definition name="php" author=" Trevor Munroe"> 
A server-side scripting language, and a powerful tool for making dynamic and interactive websites
</definition>
< entries>
'; 

header('Content-Type: text/xml'); 
$xmlDataGo= new SimpleXMLElement(xmlData); 
echo $trueXml = asXML();  

print "<h2>" . strtoupper($query) . "</h2>"; 
print "<p>" . $xmlData[$query] . "</p>"; 
print "<p> -" .$xmlData[$query]. "</p>";