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<?php $a = array(0, 1); foreach ($a as &$x) {} unset($x); $b = $a; $b[0] = 999; var_dump($a[0]);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 4
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/Cra1O
function name:  (null)
number of ops:  14
compiled vars:  !0 = $a, !1 = $x, !2 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1      > FE_RESET_RW                                      $4      !0, ->4
          2    > > FE_FETCH_RW                                              $4, !1, ->4
          3    > > JMP                                                      ->2
          4    >   FE_FREE                                                  $4
    4     5        UNSET_CV                                                 !1
    5     6        ASSIGN                                                   !2, !0
    6     7        ASSIGN_DIM                                               !2, 0
          8        OP_DATA                                                  999
    7     9        INIT_FCALL                                               'var_dump'
         10        FETCH_DIM_R                                      ~7      !0, 0
         11        SEND_VAL                                                 ~7
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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