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

Generated using Vulcan Logic Dumper, using php 8.0.0


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154.92 ms | 1395 KiB | 21 Q