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<?php class ClassA extends \stdClass {} class ClassB extends \stdClass {} class ClassC extends ClassB {} class ClassD extends ClassA {} function getSomeClass(): string { return 'ClassA'; } var_dump(new (getSomeClass())); var_dump(new ('Class' . 'B')); var_dump(new ('Class' . 'C')); var_dump(new (ClassD::class));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pILGT
function name:  (null)
number of ops:  24
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'getsomeclass'
          2        DO_FCALL                                      0  $0      
          3        FETCH_CLASS                                   0  $1      $0
          4        NEW                                              $2      $1
          5        DO_FCALL                                      0          
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
   14     8        INIT_FCALL                                               'var_dump'
          9        NEW                                              $5      'ClassB'
         10        DO_FCALL                                      0          
         11        SEND_VAR                                                 $5
         12        DO_ICALL                                                 
   15    13        INIT_FCALL                                               'var_dump'
         14        NEW                                              $8      'ClassC'
         15        DO_FCALL                                      0          
         16        SEND_VAR                                                 $8
         17        DO_ICALL                                                 
   16    18        INIT_FCALL                                               'var_dump'
         19        NEW                                              $11     'ClassD'
         20        DO_FCALL                                      0          
         21        SEND_VAR                                                 $11
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Function getsomeclass:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pILGT
function name:  getSomeClass
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E > > RETURN                                                   'ClassA'
   11     1*       VERIFY_RETURN_TYPE                                       
          2*     > RETURN                                                   null

End of function getsomeclass

Class ClassA: [no user functions]
Class ClassB: [no user functions]
Class ClassC: [no user functions]
Class ClassD: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
143.45 ms | 1013 KiB | 15 Q