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<?php function b(&$v) { $v = 0; } $ar = [[1, 2, 3, 4], [1, 2, 3, 4]]; foreach ($ar as &$v) { foreach ($v as $v1) { b($v1); } } unset($v); var_dump($ar);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 125) Position 1 = 2, Position 2 = 11
Branch analysis from position: 2
2 jumps found. (Code = 126) Position 1 = 3, Position 2 = 11
Branch analysis from position: 3
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 9
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
filename:       /in/C5Jc4
function name:  (null)
number of ops:  17
compiled vars:  !0 = $ar, !1 = $v, !2 = $v1
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   ASSIGN                                                   !0, <array>
    9     1      > FE_RESET_RW                                      $4      !0, ->11
          2    > > FE_FETCH_RW                                              $4, !1, ->11
   10     3    > > FE_RESET_R                                       $5      !1, ->9
          4    > > FE_FETCH_R                                               $5, !2, ->9
   11     5    >   INIT_FCALL                                               'b'
          6        SEND_REF                                                 !2
          7        DO_FCALL                                      0          
   10     8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $5
    9    10      > JMP                                                      ->2
         11    >   FE_FREE                                                  $4
   14    12        UNSET_CV                                                 !1
   16    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Function b:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/C5Jc4
function name:  b
number of ops:  3
compiled vars:  !0 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        ASSIGN                                                   !0, 0
    5     2      > RETURN                                                   null

End of function b

Generated using Vulcan Logic Dumper, using php 8.0.0


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