function getarray_postgresql($arraystr)  {      $regx1 = '/^{(.*)}$/';      $regx2 = "/\"((\\\\\\\\|\\\\\"|[^\"])+)\"|[^,]+/";      $regx3 = '/^[^"].*$|^"(.*)"$/';      $match = null;      preg_match( $regx1,$arraystr,$match);      $str = $match[1];      preg_match_all($regx2, $str,$match);      $items = $match[0];      $array = array();      $count = count($items);      for($index = 0; $index < $count;++$index)      {          preg_match($regx3, $items[$index],$match);          $array[$index]=end($match);      }      return $array;  }