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<?php $selected_emails = array( 16781 => "xxx@gmail.com", 16782 => "yyy@gmail.com", 16785 => "xxx@gmail.com,yyy@gmail.com", 16789 => "yyy@gmail.com", 16751 => "xxx@gmail.com,yyy@gmail.com,zzz@gmail.com", 16729 => "zzz@gmail.com,bbb@gmail.com" ); $final_array = array(); foreach ($selected_emails as $newsletter => $emails) { foreach (explode(',', $emails) as $email) { $final_array[$email][] = $newsletter; } } var_dump($final_array);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 17
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 17
Branch analysis from position: 4
2 jumps found. (Code = 77) Position 1 = 10, Position 2 = 15
Branch analysis from position: 10
2 jumps found. (Code = 78) Position 1 = 11, Position 2 = 15
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 15
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/605SI
function name:  (null)
number of ops:  22
compiled vars:  !0 = $selected_emails, !1 = $final_array, !2 = $emails, !3 = $newsletter, !4 = $email
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   12     1        ASSIGN                                                   !1, <array>
   14     2      > FE_RESET_R                                       $7      !0, ->17
          3    > > FE_FETCH_R                                       ~8      $7, !2, ->17
          4    >   ASSIGN                                                   !3, ~8
   15     5        INIT_FCALL                                               'explode'
          6        SEND_VAL                                                 '%2C'
          7        SEND_VAR                                                 !2
          8        DO_ICALL                                         $10     
          9      > FE_RESET_R                                       $11     $10, ->15
         10    > > FE_FETCH_R                                               $11, !4, ->15
   16    11    >   FETCH_DIM_W                                      $12     !1, !4
         12        ASSIGN_DIM                                               $12
         13        OP_DATA                                                  !3
   15    14      > JMP                                                      ->10
         15    >   FE_FREE                                                  $11
   14    16      > JMP                                                      ->3
         17    >   FE_FREE                                                  $7
   20    18        INIT_FCALL                                               'var_dump'
         19        SEND_VAR                                                 !1
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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