public function getExtensions()
{
$extensions = new \SplObjectStorage();
foreach ($this->extensions as $iri => $value) {
$extensions->attach(IRI::fromString($iri), $value);
}
return $extensions;
}
function makeAbsoluteStr($base, $url)
{
$base = new IRI($base);
// remove '//' in URL path (causes URLs not to resolve properly)
if (isset($base->ipath)) {
$base->ipath = preg_replace('!//+!', '/', $base->ipath);
}
if (preg_match('!^https?://!i', $url)) {
// already absolute
return $url;
} else {
$absolute = IRI::absolutize($base, $url);
if ($absolute) {
return $absolute;
}
return false;
}
}
/**
* Creates a Verb that can be used to void a {@link Statement}.
*
* @return Verb
*/
public static function createVoidVerb()
{
return new Verb(IRI::fromString('http://adlnet.gov/expapi/verbs/voided'));
}
function makeAbsoluteAttr($base, $e, $attr)
{
if ($e->hasAttribute($attr)) {
// Trim leading and trailing white space. I don't really like this but
// unfortunately it does appear on some sites. e.g. <img src=" /path/to/image.jpg" />
$url = trim(str_replace('%20', ' ', $e->getAttribute($attr)));
$url = str_replace(' ', '%20', $url);
if (!preg_match('!https?://!i', $url)) {
$absolute = IRI::absolutize($base, $url);
if ($absolute) {
$e->setAttribute($attr, $absolute);
}
}
}
}
