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<?php $a = range(1,10); foreach ($a as &$b) { if ($a % 2 === 0) { unset($b); } } var_dump($a);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 6, Position 2 = 12
Branch analysis from position: 6
2 jumps found. (Code = 126) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 11
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 11
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/iPXfk
function name:  (null)
number of ops:  17
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'range'
          1        SEND_VAL                                                 1
          2        SEND_VAL                                                 10
          3        DO_ICALL                                         $2      
          4        ASSIGN                                                   !0, $2
    3     5      > FE_RESET_RW                                      $4      !0, ->12
          6    > > FE_FETCH_RW                                              $4, !1, ->12
    4     7    >   MOD                                              ~5      !0, 2
          8        IS_IDENTICAL                                             ~5, 0
          9      > JMPZ                                                     ~6, ->11
    5    10    >   UNSET_CV                                                 !1
    3    11    > > JMP                                                      ->6
         12    >   FE_FREE                                                  $4
    8    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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