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<?php $a = array(1, 2, 3, 4, 'a', 'b'); foreach ($a as &$value) { $value *= 2; } unset($value); print_r($value);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = 2, Position 2 = 5
Branch analysis from position: 2
Jump found. Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
Jump found. Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 5
Jump found. Position 1 = -2
Branch analysis from position: 5
filename:       /in/QFIOP
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $value
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, <array>
   3     1      > FE_RESET_RW                                      $3      !0, ->5
         2    > > FE_FETCH_RW                                              $3, !1, ->5
   4     3    >   ASSIGN_MUL                                    0          !1, 2
         4      > JMP                                                      ->2
         5    >   FE_FREE                                                  $3
   6     6        UNSET_VAR                                                !1
   7     7        INIT_FCALL                                               'print_r'
         8        SEND_VAR                                                 !1
         9        DO_ICALL                                                 
        10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0