- performance fix: don't check mbstring functions existence too often

alecpl

2009-07-23 ee258ce15870e6cb4b733087368a062b5fd66b52

 program/include/rcube_imap.php

@@ -2397,10 +2397,10 @@
        $key,
        $index,
        $headers->uid,
        (string)rc_substr($this->db->encode($this->decode_header($headers->subject, TRUE)), 0, 128),
        (string)rc_substr($this->db->encode($this->decode_header($headers->from, TRUE)), 0, 128),
        (string)rc_substr($this->db->encode($this->decode_header($headers->to, TRUE)), 0, 128),
        (string)rc_substr($this->db->encode($this->decode_header($headers->cc, TRUE)), 0, 128),
        (string)mb_substr($this->db->encode($this->decode_header($headers->subject, TRUE)), 0, 128),
        (string)mb_substr($this->db->encode($this->decode_header($headers->from, TRUE)), 0, 128),
        (string)mb_substr($this->db->encode($this->decode_header($headers->to, TRUE)), 0, 128),
        (string)mb_substr($this->db->encode($this->decode_header($headers->cc, TRUE)), 0, 128),
        (int)$headers->size,
        serialize($this->db->encode(clone $headers)),
        is_object($struct) ? serialize($this->db->encode(clone $struct)) : NULL
@@ -2788,7 +2788,7 @@
      if (($p = array_search(strtolower($folder), $this->default_folders_lc)) !== false && !$a_defaults[$p])
        $a_defaults[$p] = $folder;
      else
        $folders[$folder] = rc_strtolower(rcube_charset_convert($folder, 'UTF7-IMAP'));
        $folders[$folder] = mb_strtolower(rcube_charset_convert($folder, 'UTF7-IMAP'));
      }

    // sort folders and place defaults on the top