Conditional inside loop on an xml PHP

Question

I have an xml like this. There are items with old price and some dont have.

<product>
    <item>
        <name>product 1</name>
        <price type="old">100</price>
        <price type="new">50</price>
    </item>
    <item>
        <name>product 2</name>
        <price type="old">100</price>
        <price type="new">50</price>
    </item>
    <item>
        <name>product 3</name>
        <price type="new">50</price>
    </item>
</product>

I want to iterate through each item but only get those that have type="old" items.

us3.php.net/manual/en/simplexml.examples.php

Emilio Gort
– Emilio Gort

2014-02-28 04:09:25 +00:00
Commented Feb 28, 2014 at 4:09 — Emilio Gort
– Emilio Gort, Commented Feb 28, 2014 at 4:09

ThW · Accepted Answer · 2014-02-28 08:35:17Z

1

It is possible to use xpath to fetch the items directly:

Get all item children inside the product document element

/product/item

that have a price child element

/product/item[price]

where the attribute type has the value old

/product/item[price[@type="old"]]

Example: https://eval.in/106865

$dom = new DOMDocument();
$dom->loadXml($xml);
$xpath = new DOMXpath($dom);

$items = $xpath->evaluate('/product/item[price[@type="old"]]');
foreach ($items as $item) {
  var_dump(
    $xpath->evaluate('string(name)', $item)
  ); 
};

answered Feb 28, 2014 at 8:35

ThW

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Comments

Nouphal.M · Accepted Answer · 2014-02-28 04:39:09Z

0

Try using xpath

$xml = new SimpleXmlElement($str);
$result = $xml->xpath('/product/item');
$items = array();
foreach($result as $res){
  $price = $res->xpath('price');
  foreach($price as $p){
   if($p['type']=='old'){
     $items[] = $res;
   }
  }
}

See demo here

answered Feb 28, 2014 at 4:39

Nouphal.M

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