3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X{ public function a (){ echo "a\n"; } } class Y extends X{ public function x(){ echo "x\n"; $this->a(); } } $y = new Y; $y->x();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OQvG9
function name:  (null)
number of ops:  6
compiled vars:  !0 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   NEW                                              $1      'Y'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $1
   17     3        INIT_METHOD_CALL                                         !0, 'x'
          4        DO_FCALL                                      0          
          5      > RETURN                                                   1

Class X:
Function a:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OQvG9
function name:  a
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ECHO                                                     'a%0A'
    6     1      > RETURN                                                   null

End of function a

End of class X.

Class Y:
Function x:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OQvG9
function name:  x
number of ops:  4
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   ECHO                                                     'x%0A'
   12     1        INIT_METHOD_CALL                                         'a'
          2        DO_FCALL                                      0          
   13     3      > RETURN                                                   null

End of function x

Function a:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OQvG9
function name:  a
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ECHO                                                     'a%0A'
    6     1      > RETURN                                                   null

End of function a

End of class Y.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
147.16 ms | 1394 KiB | 13 Q