Get the specific identifier in xml code with php

user_13512075 0
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Good day, I'm trying to get a specific value of an XML file in this example I need to get a productidentifier in each product that has the tag <b221> set to 03 something like this:

<productidentifier><b221>03</b221><b244>9783672461027</b244></productidentifier>

where I can get then the <b244> tag to store the EAN.

The problem is that specific items have sometimes more then one productidentifier for example:

<productidentifier><b221>02</b221><b244>3672461024</b244></productidentifier>
<productidentifier><b221>03</b221><b244>9783672461027</b244></productidentifier>

So far I tried to use: 

    foreach ($xml->product as $item) {
            $item->productidentifier->b221
    }

Which will always return me the first productidenfitier in the list

    foreach ($xml->product as $item) {
                $identifier = $item->productidentifier->xpath('//productidentifier');
                dd($identifier);
    }

Which returns me all the product identifiers in the list: https://i.stack.imgur.com/mq0NE.png

How to do it?

Thank you for reading.

xml php
1 Answers

You would need to extend your XPath expression to include a check that the <b221> element is 03. This code searches for these and outputs the <b244> value

foreach  ( $xml->xpath('//productidentifier[b221="03"]') as $product )    {
    echo $product->b244.PHP_EOL;
}
user_12137080
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