Replace x() by isset(), !empty() or defaults()

- Remove extraneous parentheses around empty() calls
- Remove duplicate calls to intval(), count() or strlen() after empty()
- Replace ternary operators outputting binary value with empty() return value
- Rewrite defaults() without x()

src/Network/Probe.php

@@ -347,7 +347,7 @@ class Probe
 			$data['url'] = $uri;
 		}
 
-		if (x($data, 'photo')) {
+		if (!empty($data['photo'])) {
 			$data['baseurl'] = Network::getUrlMatch(Strings::normaliseLink(defaults($data, 'baseurl', '')), Strings::normaliseLink($data['photo']));
 		} else {
 			$data['photo'] = System::baseUrl() . '/images/person-300.jpg';
@@ -358,7 +358,7 @@ class Probe
 				$data['name'] = $data['nick'];
 			}
 
-			if (!x($data, 'name')) {
+			if (empty($data['name'])) {
 				$data['name'] = $data['url'];
 			}
 		}