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<?php $array1 = array('A', 'B'); $array2 = array('1', '2', '3','4'); $num = count($array2); $comb = array(); //The total number of possible combinations $total = pow(2, $num); //Loop through each possible combination for ($i = 0; $i < $total; $i++) { $flag = ''; //For each combination check if each bit is set for ($j = 0; $j < $num; $j++) { //Is bit $j set in $i? if (pow(2, $j) & $i) $flag = $flag.''.$array2[$j]; } if(!empty($flag)) $comb[] = $flag; } $result = array(); foreach($array1 as $val) { foreach($comb as $co) { $result[] = $val."".$co; } } print_r($result);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 34
Branch analysis from position: 34
2 jumps found. (Code = 44) Position 1 = 36, Position 2 = 12
Branch analysis from position: 36
2 jumps found. (Code = 77) Position 1 = 38, Position 2 = 48
Branch analysis from position: 38
2 jumps found. (Code = 78) Position 1 = 39, Position 2 = 48
Branch analysis from position: 39
2 jumps found. (Code = 77) Position 1 = 40, Position 2 = 46
Branch analysis from position: 40
2 jumps found. (Code = 78) Position 1 = 41, Position 2 = 46
Branch analysis from position: 41
1 jumps found. (Code = 42) Position 1 = 40
Branch analysis from position: 40
Branch analysis from position: 46
1 jumps found. (Code = 42) Position 1 = 38
Branch analysis from position: 38
Branch analysis from position: 46
Branch analysis from position: 48
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 48
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 26
Branch analysis from position: 26
2 jumps found. (Code = 44) Position 1 = 28, Position 2 = 15
Branch analysis from position: 28
2 jumps found. (Code = 43) Position 1 = 31, Position 2 = 33
Branch analysis from position: 31
2 jumps found. (Code = 44) Position 1 = 36, Position 2 = 12
Branch analysis from position: 36
Branch analysis from position: 12
Branch analysis from position: 33
Branch analysis from position: 15
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 25
Branch analysis from position: 21
2 jumps found. (Code = 44) Position 1 = 28, Position 2 = 15
Branch analysis from position: 28
Branch analysis from position: 15
Branch analysis from position: 25
filename:       /in/AruNS
function name:  (null)
number of ops:  53
compiled vars:  !0 = $array1, !1 = $array2, !2 = $num, !3 = $comb, !4 = $total, !5 = $i, !6 = $flag, !7 = $j, !8 = $result, !9 = $val, !10 = $co
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN                                                   !1, <array>
    5     2        COUNT                                            ~13     !1
          3        ASSIGN                                                   !2, ~13
    6     4        ASSIGN                                                   !3, <array>
    9     5        INIT_FCALL                                               'pow'
          6        SEND_VAL                                                 2
          7        SEND_VAR                                                 !2
          8        DO_ICALL                                         $16     
          9        ASSIGN                                                   !4, $16
   12    10        ASSIGN                                                   !5, 0
         11      > JMP                                                      ->34
   14    12    >   ASSIGN                                                   !6, ''
   16    13        ASSIGN                                                   !7, 0
         14      > JMP                                                      ->26
   19    15    >   INIT_FCALL                                               'pow'
         16        SEND_VAL                                                 2
         17        SEND_VAR                                                 !7
         18        DO_ICALL                                         $21     
         19        BW_AND                                           ~22     !5, $21
         20      > JMPZ                                                     ~22, ->25
         21    >   CONCAT                                           ~23     !6, ''
         22        FETCH_DIM_R                                      ~24     !1, !7
         23        CONCAT                                           ~25     ~23, ~24
         24        ASSIGN                                                   !6, ~25
   16    25    >   PRE_INC                                                  !7
         26    >   IS_SMALLER                                               !7, !2
         27      > JMPNZ                                                    ~28, ->15
   21    28    >   ISSET_ISEMPTY_CV                                 ~29     !6
         29        BOOL_NOT                                         ~30     ~29
         30      > JMPZ                                                     ~30, ->33
   22    31    >   ASSIGN_DIM                                               !3
         32        OP_DATA                                                  !6
   12    33    >   PRE_INC                                                  !5
         34    >   IS_SMALLER                                               !5, !4
         35      > JMPNZ                                                    ~33, ->12
   26    36    >   ASSIGN                                                   !8, <array>
   28    37      > FE_RESET_R                                       $35     !0, ->48
         38    > > FE_FETCH_R                                               $35, !9, ->48
   30    39    > > FE_RESET_R                                       $36     !3, ->46
         40    > > FE_FETCH_R                                               $36, !10, ->46
   32    41    >   CONCAT                                           ~38     !9, ''
         42        CONCAT                                           ~39     ~38, !10
         43        ASSIGN_DIM                                               !8
         44        OP_DATA                                                  ~39
   30    45      > JMP                                                      ->40
         46    >   FE_FREE                                                  $36
   28    47      > JMP                                                      ->38
         48    >   FE_FREE                                                  $35
   36    49        INIT_FCALL                                               'print_r'
         50        SEND_VAR                                                 !8
         51        DO_ICALL                                                 
         52      > RETURN                                                   1

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