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<?php $foo = new ArrayObject; if(!$foo instanceof CheckInterface){ echo 1; }else{ echo 'what?'; }
Finding entry points
Branch analysis from position: 0
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
filename:       /in/OtqR0
function name:  (null)
number of ops:  10
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $1      'ArrayObject'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    3     3        INSTANCEOF                                       ~4      !0, 'CheckInterface'
          4        BOOL_NOT                                         ~5      ~4
          5      > JMPZ                                                     ~5, ->8
    4     6    >   ECHO                                                     1
          7      > JMP                                                      ->9
    6     8    >   ECHO                                                     'what%3F'
    7     9    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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