link_compare calls

implement compareLink function.

src/Model/Item.php

@@ -2403,7 +2403,7 @@ class Item extends BaseObject
 	public static function setHashtags(&$item)
 	{
 
-		$tags = get_tags($item["body"]);
+		$tags = Strings::getTags($item["body"]);
 
 		// No hashtags?
 		if (!count($tags)) {
@@ -2556,7 +2556,7 @@ class Item extends BaseObject
 		$cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
 		if ($cnt) {
 			foreach ($matches as $mtch) {
-				if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
+				if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
 					$mention = true;
 					Logger::log('mention found: ' . $mtch[2]);
 				}

src/Model/Profile.php

@@ -1141,7 +1141,7 @@ class Profile
 		}
 		$achar = strpos($s, '?') ? '&' : '?';
 		$mine = self::getMyURL();
-		if ($mine && !link_compare($mine, $s)) {
+		if ($mine && !Strings::compareLink($mine, $s)) {
 			return $s . $achar . 'zrl=' . urlencode($mine);
 		}
 		return $s;

src/Model/User.php

@@ -499,7 +499,7 @@ class User
 			throw new Exception(L10n::t('Your email domain is not among those allowed on this site.'));
 		}
 
-		if (!valid_email($email) || !Network::isEmailDomainValid($email)) {
+		if (!Strings::isValidEmail($email) || !Network::isEmailDomainValid($email)) {
 			throw new Exception(L10n::t('Not a valid email address.'));
 		}
 		if (self::isNicknameBlocked($nickname)) {