3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function __invoke() { } } class Bar {} function Baz() {}; var_dump(is_callable('Foo')); var_dump(is_callable('Bar')); var_dump(is_callable('Baz')); var_dump(is_callable(new Foo));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MSob4
function name:  (null)
number of ops:  27
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'is_callable'
          2        SEND_VAL                                                 'Foo'
          3        DO_ICALL                                         $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
   14     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'is_callable'
          8        SEND_VAL                                                 'Bar'
          9        DO_ICALL                                         $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
   15    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'is_callable'
         14        SEND_VAL                                                 'Baz'
         15        DO_ICALL                                         $4      
         16        SEND_VAR                                                 $4
         17        DO_ICALL                                                 
   16    18        INIT_FCALL                                               'var_dump'
         19        INIT_FCALL                                               'is_callable'
         20        NEW                                              $6      'Foo'
         21        DO_FCALL                                      0          
         22        SEND_VAR                                                 $6
         23        DO_ICALL                                         $8      
         24        SEND_VAR                                                 $8
         25        DO_ICALL                                                 
         26      > RETURN                                                   1

Function baz:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MSob4
function name:  Baz
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E > > RETURN                                                   null

End of function baz

Class Foo:
Function __invoke:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MSob4
function name:  __invoke
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E > > RETURN                                                   null

End of function __invoke

End of class Foo.

Class Bar: [no user functions]

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.91 ms | 1396 KiB | 17 Q