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<?php $a = ['first','second','third']; // touch refcount $b = &$a; foreach($a as $v) { echo 'Running ', $v, "\n\n"; unset($a[1]); var_dump($a); } echo 'final:', "\n"; var_dump($a);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 12
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/gfZBf
function name:  (null)
number of ops:  19
compiled vars:  !0 = $a, !1 = $b, !2 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        ASSIGN_REF                                               !1, !0
    6     2      > FE_RESET_R                                       $5      !0, ->12
          3    > > FE_FETCH_R                                               $5, !2, ->12
    7     4    >   ECHO                                                     'Running+'
          5        ECHO                                                     !2
          6        ECHO                                                     '%0A%0A'
    8     7        UNSET_DIM                                                !0, 1
    9     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
    6    11      > JMP                                                      ->3
         12    >   FE_FREE                                                  $5
   11    13        ECHO                                                     'final%3A'
         14        ECHO                                                     '%0A'
   12    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                                 
         18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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