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<?php // checking opcodes $a = new stdClass; if ($a instanceof stdClass) { echo 'a'; } if (!($a instanceof stdClass)) { echo 'b'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 10
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 10
Branch analysis from position: 6
filename:       /in/e9OMZ
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   NEW                                              $1      'stdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
    5     3        INSTANCEOF                                               !0, 'stdClass'
          4      > JMPZ                                                     ~4, ->6
    6     5    >   ECHO                                                     'a'
    8     6    >   INSTANCEOF                                       ~5      !0, 'stdClass'
          7        BOOL_NOT                                         ~6      ~5
          8      > JMPZ                                                     ~6, ->10
    9     9    >   ECHO                                                     'b'
   10    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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