function _openid_link_href

Pull the href attribute out of an html link element.

1 call to _openid_link_href()

_openid_xrds_discovery in modules/openid/openid.module: OpenID discovery method: perform a XRDS discovery.

File

modules/openid/openid.inc, line 405

Code

function _openid_link_href($rel, $html) {
    $rel = preg_quote($rel);
    preg_match('|<link\\s+rel=["\'](.*)' . $rel . '(.*)["\'](.*)/?>|iUs', $html, $matches);
    if (isset($matches[3])) {
        preg_match('|href=["\']([^"]+)["\']|iU', $matches[3], $href);
        return trim($href[1]);
    }
    return FALSE;
}

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