- simplexml_load_string: documentation ( source)
<?php
$xml=simplexml_load_string(<<<XML
<inventory>
<products>
<product id="001">
<name>Shirt 1 - Women's</name>
<price>12.00</price>
<color>blue</color>
</product>
<product id="002">
<name>Shirt 1 - Men's</name>
<price>12.00</price>
<color>red</color>
</product>
<product id="023">
<name>Shirt 12 - Women's</name>
<price>15.00</price>
<color>purple</color>
</product>
<product id="024">
<name>Shirt 12 - Men's</name>
<price>15.00</price>
<color>yellow</color>
</product>
</products>
</inventory>
XML
);
$a = 23;
foreach($xml->xpath('///product[@id == intval($a) && @id="024"]') as $product)
{
echo $product->attributes()->id;
echo "\n";
echo $product->name;
echo "\n";
echo $product->price;
echo "\n";
echo $product->color;
echo "\n\n";
}