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<?php function f() { $arr = [-1 => 'foo']; $a = yield -1; var_dump($arr[$a]); } $g = f(); foreach ($g as $i) { var_dump($i); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) 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
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/ASBDk
function name:  (null)
number of ops:  11
compiled vars:  !0 = $g, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    9     0  E >   INIT_FCALL                                               'f'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   10     3      > FE_RESET_R                                       $4      !0, ->9
          4    > > FE_FETCH_R                                               $4, !1, ->9
   11     5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                                 
   10     8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $4
   12    10      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/ASBDk
function name:  f
number of ops:  9
compiled vars:  !0 = $arr, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        ASSIGN                                                   !0, <array>
    5     2        YIELD                                            $3      -1
          3        ASSIGN                                                   !1, $3
    6     4        INIT_FCALL                                               'var_dump'
          5        FETCH_DIM_R                                      ~5      !0, !1
          6        SEND_VAL                                                 ~5
          7        DO_ICALL                                                 
    7     8      > GENERATOR_RETURN                                         

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


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