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<?php $root = array( 1=>'cat1', 2=>'cat2', 3=>'cat3' ); $child_1 = array( 1=>'sub_cat1', 2=>'sub_cat2', 3=>'sub_cat3' ); $child_2 = array( 1=>'sub_sub_cat1', 2=>'sub_sub_cat2', 3=>'sub_sub_cat3' ); function getAllCombinationsArray($source_arrays = array(), $kd = array(), $vd = array()){ $return = array(); foreach(array_shift($source_arrays) as $ck => $cv) { if(!empty($source_arrays)) { $return += getAllCombinationsArray($source_arrays, $kd + (array)$ck, $vd + (array)$cv); } else { $return[implode('_', $kd)] = implode(' -> ', $vd); } } return $return; } print_r(getAllCombinationsArray(array($root, $child_1, $child_2)));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/p5lVo
function name:  (null)
number of ops:  13
compiled vars:  !0 = $root, !1 = $child_1, !2 = $child_2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN                                                   !1, <array>
    5     2        ASSIGN                                                   !2, <array>
   21     3        INIT_FCALL                                               'print_r'
          4        INIT_FCALL                                               'getallcombinationsarray'
          5        INIT_ARRAY                                       ~6      !0
          6        ADD_ARRAY_ELEMENT                                ~6      !1
          7        ADD_ARRAY_ELEMENT                                ~6      !2
          8        SEND_VAL                                                 ~6
          9        DO_FCALL                                      0  $7      
         10        SEND_VAR                                                 $7
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Function getallcombinationsarray:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 8, Position 2 = 35
Branch analysis from position: 8
2 jumps found. (Code = 78) Position 1 = 9, Position 2 = 35
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 24
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 34
Branch analysis from position: 34
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 35
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 35
filename:       /in/p5lVo
function name:  getAllCombinationsArray
number of ops:  38
compiled vars:  !0 = $source_arrays, !1 = $kd, !2 = $vd, !3 = $return, !4 = $cv, !5 = $ck
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV_INIT                                        !0      <array>
          1        RECV_INIT                                        !1      <array>
          2        RECV_INIT                                        !2      <array>
    8     3        ASSIGN                                                   !3, <array>
   10     4        INIT_FCALL                                               'array_shift'
          5        SEND_REF                                                 !0
          6        DO_ICALL                                         $7      
          7      > FE_RESET_R                                       $8      $7, ->35
          8    > > FE_FETCH_R                                       ~9      $8, !4, ->35
          9    >   ASSIGN                                                   !5, ~9
   11    10        ISSET_ISEMPTY_CV                                 ~11     !0
         11        BOOL_NOT                                         ~12     ~11
         12      > JMPZ                                                     ~12, ->24
   12    13    >   INIT_FCALL_BY_NAME                                       'getAllCombinationsArray'
         14        SEND_VAR_EX                                              !0
         15        CAST                                          7  ~13     !5
         16        ADD                                              ~14     !1, ~13
         17        SEND_VAL_EX                                              ~14
         18        CAST                                          7  ~15     !4
         19        ADD                                              ~16     !2, ~15
         20        SEND_VAL_EX                                              ~16
         21        DO_FCALL                                      0  $17     
         22        ASSIGN_OP                                     1          !3, $17
         23      > JMP                                                      ->34
   14    24    >   INIT_FCALL                                               'implode'
         25        SEND_VAL                                                 '_'
         26        SEND_VAR                                                 !1
         27        DO_ICALL                                         $19     
         28        INIT_FCALL                                               'implode'
         29        SEND_VAL                                                 '+-%3E+'
         30        SEND_VAR                                                 !2
         31        DO_ICALL                                         $21     
         32        ASSIGN_DIM                                               !3, $19
         33        OP_DATA                                                  $21
   10    34    > > JMP                                                      ->8
         35    >   FE_FREE                                                  $8
   18    36      > RETURN                                                   !3
   19    37*     > RETURN                                                   null

End of function getallcombinationsarray

Generated using Vulcan Logic Dumper, using php 8.0.0


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