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<?php function P(array $sources) { $result=array(); $cache=array(); foreach($sources as $node) { $cache=$result; $result=array(); foreach($node as $item) { if(empty($cache)) { $result[]=array($item); } else { foreach($cache as $line) { $line[]=$item; $result[]=$line; } } } } return $result; } $result=P(array( array('a', 'b'), array('a', 'b'), array('a', 'b'), array('a'), array('a'), array('a') )); print_r(array_map(function($a){return implode(",",$a);},$result));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AHl0u
function name:  (null)
number of ops:  13
compiled vars:  !0 = $result
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   28     0  E >   INIT_FCALL                                                   'p'
          1        SEND_VAL                                                     <array>
          2        DO_FCALL                                          0  $1      
          3        ASSIGN                                                       !0, $1
   29     4        INIT_FCALL                                                   'print_r'
          5        INIT_FCALL                                                   'array_map'
          6        DECLARE_LAMBDA_FUNCTION                              ~3      [0]
          7        SEND_VAL                                                     ~3
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                             $4      
         10        SEND_VAR                                                     $4
         11        DO_ICALL                                                     
         12      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AHl0u
function name:  {closure:/in/AHl0u:29}
number of ops:  4
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
          0  E >   RECV                                                 !0      
          1        FRAMELESS_ICALL_2                implode             ~1      '%2C', !0
          2      > RETURN                                                       ~1
          3*     > RETURN                                                       null

End of Dynamic Function 0

Function p:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 26
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 26
Branch analysis from position: 5
2 jumps found. (Code = 77) Position 1 = 8, Position 2 = 24
Branch analysis from position: 8
2 jumps found. (Code = 78) Position 1 = 9, Position 2 = 24
Branch analysis from position: 9
2 jumps found. (Code = 43) Position 1 = 11, Position 2 = 15
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 23
Branch analysis from position: 23
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 15
2 jumps found. (Code = 77) Position 1 = 16, Position 2 = 22
Branch analysis from position: 16
2 jumps found. (Code = 78) Position 1 = 17, Position 2 = 22
Branch analysis from position: 17
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
Branch analysis from position: 22
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 22
Branch analysis from position: 24
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 24
Branch analysis from position: 26
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 26
filename:       /in/AHl0u
function name:  P
number of ops:  29
compiled vars:  !0 = $sources, !1 = $result, !2 = $cache, !3 = $node, !4 = $item, !5 = $line
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   RECV                                                 !0      
    4     1        ASSIGN                                                       !1, <array>
    5     2        ASSIGN                                                       !2, <array>
    6     3      > FE_RESET_R                                           $8      !0, ->26
          4    > > FE_FETCH_R                                                   $8, !3, ->26
    8     5    >   ASSIGN                                                       !2, !1
    9     6        ASSIGN                                                       !1, <array>
   10     7      > FE_RESET_R                                           $11     !3, ->24
          8    > > FE_FETCH_R                                                   $11, !4, ->24
   12     9    >   ISSET_ISEMPTY_CV                                             !2
         10      > JMPZ                                                         ~12, ->15
   14    11    >   INIT_ARRAY                                           ~14     !4
         12        ASSIGN_DIM                                                   !1
         13        OP_DATA                                                      ~14
   12    14      > JMP                                                          ->23
   18    15    > > FE_RESET_R                                           $15     !2, ->22
         16    > > FE_FETCH_R                                                   $15, !5, ->22
   20    17    >   ASSIGN_DIM                                                   !5
         18        OP_DATA                                                      !4
   21    19        ASSIGN_DIM                                                   !1
         20        OP_DATA                                                      !5
   18    21      > JMP                                                          ->16
         22    >   FE_FREE                                                      $15
   10    23    > > JMP                                                          ->8
         24    >   FE_FREE                                                      $11
    6    25      > JMP                                                          ->4
         26    >   FE_FREE                                                      $8
   26    27      > RETURN                                                       !1
   27    28*     > RETURN                                                       null

End of function p

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