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<?php class CoalesceTest { public function __isset(string $key): bool { return false; } public function __get(string $key): mixed { throw new \Exception(); } } $test = new CoalesceTest(); var_dump($test->bar ?? 'fallback');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GBCfS
function name:  (null)
number of ops:  10
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   NEW                                              $1      'CoalesceTest'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   17     3        INIT_FCALL                                               'var_dump'
          4        FETCH_OBJ_IS                                     ~4      !0, 'bar'
          5        COALESCE                                         ~5      ~4
          6        QM_ASSIGN                                        ~5      'fallback'
          7        SEND_VAL                                                 ~5
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Class CoalesceTest:
Function __isset:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GBCfS
function name:  __isset
number of ops:  4
compiled vars:  !0 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
    7     1      > RETURN                                                   <false>
    8     2*       VERIFY_RETURN_TYPE                                       
          3*     > RETURN                                                   null

End of function __isset

Function __get:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 108) Position 1 = -2
filename:       /in/GBCfS
function name:  __get
number of ops:  6
compiled vars:  !0 = $key
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV                                             !0      
   12     1        NEW                                              $1      'Exception'
          2        DO_FCALL                                      0          
          3      > THROW                                         0          $1
   13     4*       VERIFY_RETURN_TYPE                                       
          5*     > RETURN                                                   null

End of function __get

End of class CoalesceTest.

Generated using Vulcan Logic Dumper, using php 8.0.0


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