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<?php $a = [1,2,3,4,5,6,7,8,9]; foreach ($a as $key => &$value) { if ($key === 4) { unset($a[$key + 1]); var_dump(key($a)); break; } } var_dump(key($a));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 16
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 16
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 15
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 16
Branch analysis from position: 16
filename:       /in/KjRVP
function name:  (null)
number of ops:  24
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_RW                                      $4      !0, ->16
          2    > > FE_FETCH_RW                                      ~5      $4, !1, ->16
          3    >   ASSIGN                                                   !2, ~5
    6     4        IS_IDENTICAL                                             !2, 4
          5      > JMPZ                                                     ~7, ->15
    7     6    >   ADD                                              ~8      !2, 1
          7        UNSET_DIM                                                !0, ~8
    8     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'key'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $9      
         12        SEND_VAR                                                 $9
         13        DO_ICALL                                                 
    9    14      > JMP                                                      ->16
    5    15    > > JMP                                                      ->2
         16    >   FE_FREE                                                  $4
   13    17        INIT_FCALL                                               'var_dump'
         18        INIT_FCALL                                               'key'
         19        SEND_VAR                                                 !0
         20        DO_ICALL                                         $11     
         21        SEND_VAR                                                 $11
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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174.73 ms | 1395 KiB | 17 Q