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<?php function &gen_reference() { $data = [77,78,79]; foreach($data as $value ) { yield $value; } } $it = gen_reference(); foreach ($it as &$number) { echo $number *= -1,"\n"; } // Must unset $number ... foreach($it as $number){ echo $number; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 126) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
2 jumps found. (Code = 77) Position 1 = 11, Position 2 = 14
Branch analysis from position: 11
2 jumps found. (Code = 78) Position 1 = 12, Position 2 = 14
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 11
Branch analysis from position: 11
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
Branch analysis from position: 9
filename:       /in/gRUfV
function name:  (null)
number of ops:  16
compiled vars:  !0 = $it, !1 = $number
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'gen_reference'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   10     3      > FE_RESET_RW                                      $4      !0, ->9
          4    > > FE_FETCH_RW                                              $4, !1, ->9
   11     5    >   ASSIGN_OP                                     3  ~5      !1, -1
          6        ECHO                                                     ~5
          7        ECHO                                                     '%0A'
   10     8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $4
   14    10      > FE_RESET_R                                       $6      !0, ->14
         11    > > FE_FETCH_R                                               $6, !1, ->14
   15    12    >   ECHO                                                     !1
   14    13      > JMP                                                      ->11
         14    >   FE_FREE                                                  $6
   16    15      > RETURN                                                   1

Function gen_reference:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 6
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 6
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 6
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 6
filename:       /in/gRUfV
function name:  gen_reference
number of ops:  8
compiled vars:  !0 = $data, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   GENERATOR_CREATE                                         
    3     1        ASSIGN                                                   !0, <array>
    5     2      > FE_RESET_R                                       $3      !0, ->6
          3    > > FE_FETCH_R                                               $3, !1, ->6
    6     4    >   YIELD                                                    !1
    5     5      > JMP                                                      ->3
          6    >   FE_FREE                                                  $3
    8     7      > GENERATOR_RETURN                                         

End of function gen_reference

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
168.65 ms | 1390 KiB | 14 Q