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<?php abstract class Foo { abstract public function fooFunc(); } class Bar extends Foo { public function fooFunc() { return 'hello'; } } $callable = array(new Bar, 'fooFunc'); var_dump(is_callable($callable)); var_dump(call_user_func($callable));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QEReI
function name:  (null)
number of ops:  17
compiled vars:  !0 = $callable
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   NEW                                              $1      'Bar'
          1        DO_FCALL                                      0          
          2        INIT_ARRAY                                       ~3      $1
          3        ADD_ARRAY_ELEMENT                                ~3      'fooFunc'
          4        ASSIGN                                                   !0, ~3
   17     5        INIT_FCALL                                               'var_dump'
          6        INIT_FCALL                                               'is_callable'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                         $5      
          9        SEND_VAR                                                 $5
         10        DO_ICALL                                                 
   18    11        INIT_FCALL                                               'var_dump'
         12        INIT_USER_CALL                                0          'call_user_func', !0
         13        DO_FCALL                                      0  $7      
         14        SEND_VAR                                                 $7
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Class Foo:
Function foofunc:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QEReI
function name:  fooFunc
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E > > RETURN                                                   null

End of function foofunc

End of class Foo.

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

End of function foofunc

End of class Bar.

Generated using Vulcan Logic Dumper, using php 8.0.0


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