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<?php $array = [ ['record' => 1, 'sponsor' => 2, 'email' => 'some@email.com'], ['record' => 2, 'sponsor' => 2, 'email' => 'some1@email.com'], ['record' => 3, 'sponsor' => 2, 'email' => 'some2@email.com'], ['record' => 4, 'sponsor' => 2, 'email' => 'some3@email.com'], ]; $lookup = array_column($array, 'email', 'record'); foreach ($array as &$row) { $row['sponsor'] = $lookup[$row['sponsor']]; } var_export($array);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 8, Position 2 = 14
Branch analysis from position: 8
2 jumps found. (Code = 126) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/tqp3b
function name:  (null)
number of ops:  19
compiled vars:  !0 = $array, !1 = $lookup, !2 = $row
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   10     1        INIT_FCALL                                                   'array_column'
          2        SEND_VAR                                                     !0
          3        SEND_VAL                                                     'email'
          4        SEND_VAL                                                     'record'
          5        DO_ICALL                                             $4      
          6        ASSIGN                                                       !1, $4
   11     7      > FE_RESET_RW                                          $6      !0, ->14
          8    > > FE_FETCH_RW                                                  $6, !2, ->14
   12     9    >   FETCH_DIM_R                                          ~8      !2, 'sponsor'
         10        FETCH_DIM_R                                          ~9      !1, ~8
         11        ASSIGN_DIM                                                   !2, 'sponsor'
         12        OP_DATA                                                      ~9
   11    13      > JMP                                                          ->8
         14    >   FE_FREE                                                      $6
   14    15        INIT_FCALL                                                   'var_export'
         16        SEND_VAR                                                     !0
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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