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<?php $a = [1,2,3,4,5,6,7,8,9]; foreach ($a as $key => $value) { if ($key === 4) { var_dump(key($a)); break; } } var_dump(key($a));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 14
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 14
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 13
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 14
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 14
Branch analysis from position: 14
filename:       /in/iWON4
function name:  (null)
number of ops:  22
compiled vars:  !0 = $a, !1 = $value, !2 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1      > FE_RESET_R                                       $4      !0, ->14
          2    > > FE_FETCH_R                                       ~5      $4, !1, ->14
          3    >   ASSIGN                                                   !2, ~5
    6     4        IS_IDENTICAL                                             !2, 4
          5      > JMPZ                                                     ~7, ->13
    7     6    >   INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'key'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $8      
         10        SEND_VAR                                                 $8
         11        DO_ICALL                                                 
    8    12      > JMP                                                      ->14
    5    13    > > JMP                                                      ->2
         14    >   FE_FREE                                                  $4
   12    15        INIT_FCALL                                               'var_dump'
         16        INIT_FCALL                                               'key'
         17        SEND_VAR                                                 !0
         18        DO_ICALL                                         $10     
         19        SEND_VAR                                                 $10
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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