How to parse a specific line from a file?

Question

PHP

Hello, I have an xml file with the following content:

<?xml version="1.0" encoding="utf-8" ?> 
<xmlDoc>
<document quantity="1">
<reader>
  <entry>AB:ГОРОДСКОЙ ЧИТАТЕЛЬ</entry> 
  <entry>AA:5502d0933967dc713dea44699088b0cf</entry> 
  <entry>AY:PV6FI</entry> 
  <entry>AG:N/A</entry> 
  <entry>AW:READER</entry> 
  <entry>AX:1988</entry> 
  </reader>
<list>
  <entry codePlace="B001" place="Библиотека" total="1" /> 
  </list>
  </document>
  </xmlDoc>

Parse with php code:

$xml = simplexml_load_file('index.xml');

     foreach ($xml->document->reader->entry as $entry) {
         echo $entry . '<br>';
     }

Now it parses all lines, but how to select specific ones?

Answer 1

" The if construct is one of the most important in many programming languages, including PHP."