3v4l.org

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<?php $x = 1; echo isset($x, $y) ? 1 : 0;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
filename:       /in/v4ET3
function name:  (null)
number of ops:  11
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 1
    5     1        ISSET_ISEMPTY_CV                                 ~3      !0
          2      > JMPZ_EX                                          ~3      ~3, ->5
          3    >   ISSET_ISEMPTY_CV                                 ~4      !1
          4        BOOL                                             ~3      ~4
          5    > > JMPZ                                                     ~3, ->8
          6    >   QM_ASSIGN                                        ~5      1
          7      > JMP                                                      ->9
          8    >   QM_ASSIGN                                        ~5      0
          9    >   ECHO                                                     ~5
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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