[a] => aaa
[b] => 
   [1] => 111
   [2] => 222
[b1] => 111
[b2] => 
   [1] => 111
   [2] => 222
[c] => ccc
[d] => [1 .. 38]Array
(
    [0] => Array
        (
            [0] => 
    If separator is 
            [1] => an empty 
    string 
            [2] => (""), explode() 
            [3] => throws a ValueError. 
            [4] => 
    If separator 
            [5] => contains a value 
            [6] => that is not 
            [7] => contained 
    in 
            [8] => string and a 
            [9] => negative limit is 
            [10] => used, 
    then an 
            [11] => empty array will be 
            [12] => returned, 
    
            [13] => otherwise an array 
            [14] => containing string 
  
            [15] =>   will be returned. 
        )

)
Array
(
    [0] => 
[message] => dd2020
[author] => wo

    [1] => [added] => [1 .. 1229]
)