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<?php function arrayFlat($arr){ $out = ''; foreach($arr as $key => $value){ if(!is_array($value)){ $out .= $value.','; }else{ $out .= $key.','; $out .= arrayFlat($value); } } return trim($out,','); } $aNonFlat = array( 1, 2, array( 3, 4, 5, array( 6, 7 ), 8, 9, ), 10, 11 ); $result = explode(',',arrayFlat($aNonFlat)); echo '<pre>'; print_r($result); echo '</pre>';
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/U3bfp
function name:  (null)
number of ops:  15
compiled vars:  !0 = $aNonFlat, !1 = $result
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   17     0  E >   ASSIGN                                                       !0, <array>
   35     1        INIT_FCALL                                                   'explode'
          2        SEND_VAL                                                     '%2C'
          3        INIT_FCALL                                                   'arrayflat'
          4        SEND_VAR                                                     !0
          5        DO_FCALL                                          0  $3      
          6        SEND_VAR                                                     $3
          7        DO_ICALL                                             $4      
          8        ASSIGN                                                       !1, $4
   36     9        ECHO                                                         '%3Cpre%3E'
   37    10        INIT_FCALL                                                   'print_r'
         11        SEND_VAR                                                     !1
         12        DO_ICALL                                                     
   38    13        ECHO                                                         '%3C%2Fpre%3E'
         14      > RETURN                                                       1

Function arrayflat:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 18
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 18
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 11
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 17
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
filename:       /in/U3bfp
function name:  arrayFlat
number of ops:  22
compiled vars:  !0 = $arr, !1 = $out, !2 = $value, !3 = $key
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   RECV                                                 !0      
    3     1        ASSIGN                                                       !1, ''
    4     2      > FE_RESET_R                                           $5      !0, ->18
          3    > > FE_FETCH_R                                           ~6      $5, !2, ->18
          4    >   ASSIGN                                                       !3, ~6
    6     5        TYPE_CHECK                                      128  ~8      !2
          6        BOOL_NOT                                             ~9      ~8
          7      > JMPZ                                                         ~9, ->11
    7     8    >   CONCAT                                               ~10     !2, '%2C'
          9        ASSIGN_OP                                         8          !1, ~10
    6    10      > JMP                                                          ->17
    9    11    >   CONCAT                                               ~12     !3, '%2C'
         12        ASSIGN_OP                                         8          !1, ~12
   10    13        INIT_FCALL_BY_NAME                                           'arrayFlat'
         14        SEND_VAR_EX                                                  !2
         15        DO_FCALL                                          0  $14     
         16        ASSIGN_OP                                         8          !1, $14
    4    17    > > JMP                                                          ->3
         18    >   FE_FREE                                                      $5
   14    19        FRAMELESS_ICALL_2                trim                ~16     !1, '%2C'
         20      > RETURN                                                       ~16
   15    21*     > RETURN                                                       null

End of function arrayflat

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