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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_ug16m0gqd6nrecas9rdt278seg, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static S htag(S tag) {
  ret htag(tag, "");
}

static S htag(S tag, S contents, O... params) {
  S openingTag = hopeningTag(tag, params);
  S s = str(contents);
  if (empty(s))
    ret dropLast(openingTag) + "/>");
  ret openingTag + s + "</" + tag + ">";
}

// shortcut for converting an object to string
static S htag(S tag, O contents, O... params) {
  ret htag(tag, str(contents), params);
}