array
  0 =>
    array
      'hour' => int 8
      'minute' => int 45
      'compare' => string '>=' (length=2)
  1 =>
    array
      'hour' => int 17
      'minute' => int 12
      'compare' => string '<=' (length=2)
  2 =>
    array
      'dayofweek' =>
        array
          0 => int 2
          1 => int 6
      'compare' => string 'BETWEEN' (length=7)

string ' AND ( ( DATE_FORMAT( post_date, '%H.%i' ) >= 8.450000 ) AND ( DATE_FORMAT( post_date, '%H.%i' ) <= 17.120000 ) AND ( DAYOFWEEK( post_date ) BETWEEN 2 AND 6 ) )' (length=160)

array
  0 =>
    array
      'minute' => int 30
      'compare' => string '>=' (length=2)
  1 =>
    array
      'dayofweek' => int 3
      'compare' => string '=' (length=1)

string ' AND ( ( MINUTE( post_date ) >= 30 ) AND ( DAYOFWEEK( post_date ) = 3 ) )' (length=73)

array
  'column' => string 'post_date_gmt' (length=13)
  'relation' => string 'OR' (length=2)
  0 =>
    array
      'hour' =>
        array
          0 => int 2
          1 => int 12
      'minute' =>
        array
          0 => int 5
          1 => int 16
      'compare' => string 'BETWEEN' (length=7)
  1 =>
    array
      'minute' =>
        array
          0 => int 45
          1 => int 55
      'second' => int 12
      'compare' => string 'BETWEEN' (length=7)
  2 =>
    array
      'dayofweek' =>
        array
          0 => int 2
          1 => int 4
          2 => int 7
          3 => string 'foobar' (length=6)
      'compare' => string 'IN' (length=2)

string ' AND ( ( HOUR( post_date_gmt ) BETWEEN 2 AND 12 AND MINUTE( post_date_gmt ) BETWEEN 5 AND 16 ) OR ( MINUTE( post_date_gmt ) BETWEEN 45 AND 55 AND SECOND( post_date_gmt ) BETWEEN 12 AND 12 ) OR ( DAYOFWEEK( post_date_gmt ) IN (2,4,7,0) ) )' (length=238)

array
  0 =>
    array
      'hour' => string 'foo' (length=3)

string '' (length=0)