Parsing multi nested child in XML in PHP - php

Question

Firstly first I am a beginner with PHP. Especially when i have to deal with XML Parsing , I am having a struggle with it right now, lots of xml. Hours and hours already I tried solving it and its already giving me a headache.
Here the XML :
<v1:product>
<v1:data>
<v1:account_id>5637</v1:account_id>
<v1:account_name>John Doe</v1:account_name>
<v1:product_id>f4dc8300-1f13-11e8-bfa43d4d9ee60f6b</v1:product_id>
<v1:product_name>Product Test</v1:product_name>
<v1:product_desc>
<v1:name>Arc</v1:name>
<v1:unit>boxes</v1:unit>
<v1:value>10</v1:value>
</v1:product_desc>
<v1:product_desc>
<v1:name>Birg</v1:name>
<v1:unit>kilos</v1:unit>
<v1:value>2</v1:value>
</v1:product_desc>
<v1:product_desc>
<v1:name>Cyitha</v1:name>
<v1:unit>Minutes</v1:unit>
<v1:value>30</v1:value>
</v1:product_desc>
<v1:offer>
<v1:offer_id>3575374</v1:offer_id>
<v1:offer_name>Flash</v1:offer_name>
</v1:offer>
</v1:data>
<v1:data>
<v1:account_id>5892</v1:account_id>
<v1:account_name>John Doe</v1:account_name>
<v1:product_id>jsad2sdx-asd2-983j</v1:product_id>
<v1:product_name>Product Test 2</v1:product_name>
<v1:product_desc>
<v1:name>Arc</v1:name>
<v1:unit>boxes</v1:unit>
<v1:value>2</v1:value>
</v1:product_desc>
<v1:product_desc>
<v1:name>Birg</v1:name>
<v1:unit>kilos</v1:unit>
<v1:value>10</v1:value>
</v1:product_desc>
<v1:product_desc>
<v1:name>Cyitha</v1:name>
<v1:unit>Minutes</v1:unit>
<v1:value>99</v1:value>
</v1:product_desc>
<v1:offer>
<v1:offer_id>3575374</v1:offer_id>
<v1:offer_name>Flash</v1:offer_name>
</v1:offer>
</v1:data>
</v1:product>
and this is what i have in PHP
$objGetEmAll = new DOMDocument();
$objGetEmAll->loadXML($theXML);
$datas = $objGetEmAll->getElementsByTagName('data');
$responseValue = array();
foreach($datas as $data) //each element of DATA
{
$dataValue = array();
if($data->childNodes->length)
{
foreach($data->childNodes as $i)
{
$dataValue[$i->nodeName] = $i->nodeValue;
}
}
$responseValue[] = $dataValue;
}
but still fail when i want to extract value dynamically inside product_desc tag. I want to change XML above into an array which is like below
Array
(
[0] => Array
(
[v1:account_id] => 5637
[v1:account_name] => adsfafds
[v1:product_id] => 124asd
[v1:product_name] => HALO
[v1:product_desc] => Array
(
[0] => Array
(
[v1:name] => A
[v1:unit] => BOXes
[v1:value] => 7
)
[1] => Array
(
[v1:name] => B
[v1:unit] => mins
[v1:value] => 1000
)
[2] => Array
(
[v1:name] => C
[v1:unit] => call
[v1:value] => 700
)
[3] => Array
(
[v1:name] => D
[v1:unit] => GB
[v1:value] => 4
)
)
[v1:offer] => Array
(
[v1:offer_id] => 3575374
[v1:offer_name] => Flash
)
)
)
I know maybe this is the easy one, but for me who just joined programming in these last month, this is confusing. Links or helps are welcome

Answer 1

Use this
$objGetEmAll = new DOMDocument();
$objGetEmAll->loadXML($theXML);
$datas = $objGetEmAll->getElementsByTagName('data');
$responseValue = array();
foreach($datas as $data) //each element of DATA
{
$dataValue = array();
$product_desc_counter = 0;
$offer_counter = 0;
if($data->childNodes->length)
{
foreach($data->childNodes as $i) {
// for v1:product_desc group case :1
if($i->nodeName == 'v1:product_desc' ){
foreach($i->childNodes as $p) {
$dataValue[$i->nodeName][ $product_desc_counter][$p->nodeName] = $p->nodeValue;
}
$product_desc_counter ++;
} else if($i->nodeName == 'v1:offer' ) // for offer group case:2
{
foreach($i->childNodes as $p) {
$dataValue[$i->nodeName][ $offer_counter][$p->nodeName] = $p->nodeValue;
}
$offer_counter ++;
}
else // case:3
$dataValue[$i->nodeName] = $i->nodeValue;
}
}
$responseValue[] = $dataValue;
}
In the above lines we loop over all data nodes then check if it has any nodes if it doesn't( like for items account_name, product_id ..) we simply store it's nodeValue in our result array ie. in $responseValue. If it has any child (v1:product_desc,v1:offer ie case:1 or 2) we again loop over its children and append them to combination of corresponding key and the corresponding loop counter ( $product_desc_counter or $offer_counter ) .It might be hard at first to understand (specially array indexes) but after fiddling with it for a while you will grasp it.