simplexml and xpath, read sibling

Question

I have the following XML file :

    
        [...]
             


        

Answer 1

This solution includes reference to the Wordpress XML namespace:

$doc = new SimpleXmlElement($xml);
$doc->registerXPathNamespace ('wp', 'http://wordpress.org/export/1.0/');

$wp_meta_title = $doc->xpath("//wp:postmeta[wp:meta_key = '_yoast_wpseo_title']/wp:meta_value");

foreach ($wp_meta_title as $title) {
    echo (string)$title . "\n";
}

result:

item-1-title
item-2-title

See http://ideone.com/qjOfIW

The path //wp:postmeta[wp:meta_key = '_yoast_wpseo_title']/wp:meta_value is pretty straight-forward, I don't think it needs special explanation.