3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public static function x() { return 'x'; } } class Bar extends Foo { public static function x() { return 'y'; } } var_dump(Foo::x()); var_dump((new Bar)->x());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VBm4f
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_STATIC_METHOD_CALL                                  'Foo', 'x'
          2        DO_FCALL                                      0  $0      
          3        SEND_VAR                                                 $0
          4        DO_ICALL                                                 
   14     5        INIT_FCALL                                               'var_dump'
          6        NEW                                              $2      'Bar'
          7        DO_FCALL                                      0          
          8        INIT_METHOD_CALL                                         $2, 'x'
          9        DO_FCALL                                      0  $4      
         10        SEND_VAR                                                 $4
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Class Foo:
Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VBm4f
function name:  x
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E > > RETURN                                                   'x'
          1*     > RETURN                                                   null

End of function x

End of class Foo.

Class Bar:
Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VBm4f
function name:  x
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E > > RETURN                                                   'y'
          1*     > RETURN                                                   null

End of function x

End of class Bar.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
139.8 ms | 1395 KiB | 15 Q