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

Generated using Vulcan Logic Dumper, using php 8.0.0


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142.77 ms | 1392 KiB | 17 Q