array(12) {
  ["ptid"] => int(7)
  ["name"] => string(33) "英语人教PEP版三年级上册"
  ["studysection"] => int(203)
  ["subject"] => int(31)
  ["grade"] => int(131)
  ["edition"] => int(289)
  ["volume"] => int(213)
  ["scheme"] => int(212)
  ["sort"] => int(101)
  ["status"] => int(2)
  ["zzstep_pt_rel"] => int(51381)
  ["id"] => int(7)
}