- var_dump: documentation ( source)
- simplexml_load_string: documentation ( source)
<?php
$x = <<<XML
<data>
<prod id="1">
<layer id="layer_0" imgSRC="data/361_layer_0.png"/>
<layer id="layer_1" imgSRC="data/362_layer_0.png"/>
<layer id="layer_2" imgSRC="data/363_layer_0.png"/>
</prod>
<prod id="2">
<layer id="layer_0" imgSRC="data/361_layer_0.png"/>
<layer id="layer_1" imgSRC="data/362_layer_0.png"/>
<layer id="layer_2" imgSRC="data/363_layer_0.png"/>
</prod>
</data>
XML;
$xml = simplexml_load_string($x); // assuming XML in $x
$node = $xml->xpath("//prod[@id='2']")[0];
var_dump($node);