_php skills based on PHP's operational details of XML

<?php

$xml = simplexml_load_file (' Example.xml '); Creating SimpleXML Objects
Var_dump ($xml); Output XML
?>

<?php 
    $xml = simplexml_load_file (' example.xml ');          /Read XML file   
    foreach ($xml->depart as $a)                                      // Iterate through each of the depart tags in the XML data   
    { 
        echo "$a->name <BR>";                                        //Output The Name property   
   } 
?>  

<?php 
    $xml = simplexml_load_file (' example.xml ');          /Read XML file   
    echo $xml->depart->name[0];                                   /Output node   
? > 

<?php 
    $xml = simplexml_load_file (' example.xml '); 
    foreach ($xml->depart->children () as $depart)              //Loop read sub tags under depart   
    { 
        Var_dump ($depart);                                                          //Output label XML data   
   } 
?> 

<?php 
    $xml = simplexml_load_file (' example.xml ');                      /Read XML file   
    $result = $xml->xpath ('/departs/depart/employees/employee/name ');        //define node   
    var_dump ($result);                                            /Output node   
?> 

<?php
$xml = simplexml_load_file (' Example.xml '); Reading XML
$xml->depart->name[0] = "Human Resource"; modifying nodes
?>

<?php
$xml = simplexml_load_file (' Example.xml '); Reading XML data
echo $xml->asxml (); Standardize XML data
?>

<?php
$xml = simplexml_load_file (' Example.xml '); Reading XML data
$newxml = $xml->asxml (); Standardize XML data
$fp = fopen ("Newxml.xml", "w"); Open the file you want to write XML data to
Fwrite ($fp, $newxml); Writing XML data
Fclose ($FP); Close File
?>