Ok, we need to add some parentheses:
<?php if(($user = $site->user($page->author())) && ($avatar = $user->avatar())): ?>
<img src="<?php echo $avatar->url() ?>" alt="">
<?php endif ?>
Ok, we need to add some parentheses:
<?php if(($user = $site->user($page->author())) && ($avatar = $user->avatar())): ?>
<img src="<?php echo $avatar->url() ?>" alt="">
<?php endif ?>