3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function x() { $this->y(); } function y() { echo "a"; } } class B extends A { function y() { echo "b"; } } $b = new B; $b->y();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSAeA
function name:  (null)
number of ops:  6
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   25     0  E >   NEW                                              $1      'B'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   27     3        INIT_METHOD_CALL                                         !0, 'y'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Class A:
Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSAeA
function name:  x
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_METHOD_CALL                                         'y'
          1        DO_FCALL                                      0          
    7     2      > RETURN                                                   null

End of function x

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

End of function y

End of class A.

Class B:
Function y:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSAeA
function name:  y
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   ECHO                                                     'b'
   20     1      > RETURN                                                   null

End of function y

Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/DSAeA
function name:  x
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_METHOD_CALL                                         'y'
          1        DO_FCALL                                      0          
    7     2      > RETURN                                                   null

End of function x

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.94 ms | 1395 KiB | 13 Q