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<?php class A { function count() { static $var = 0; return ++$var; } } class B extends A {} $a = new A; var_dump($a->count()); $b = new B; var_dump($b->count()); $a2 = new A; var_dump($a2->count());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4rICv
function name:  (null)
number of ops:  25
compiled vars:  !0 = $a, !1 = $b, !2 = $a2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   NEW                                              $3      'A'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
   13     3        INIT_FCALL                                               'var_dump'
          4        INIT_METHOD_CALL                                         !0, 'count'
          5        DO_FCALL                                      0  $6      
          6        SEND_VAR                                                 $6
          7        DO_ICALL                                                 
   14     8        NEW                                              $8      'B'
          9        DO_FCALL                                      0          
         10        ASSIGN                                                   !1, $8
   15    11        INIT_FCALL                                               'var_dump'
         12        INIT_METHOD_CALL                                         !1, 'count'
         13        DO_FCALL                                      0  $11     
         14        SEND_VAR                                                 $11
         15        DO_ICALL                                                 
   16    16        NEW                                              $13     'A'
         17        DO_FCALL                                      0          
         18        ASSIGN                                                   !2, $13
   17    19        INIT_FCALL                                               'var_dump'
         20        INIT_METHOD_CALL                                         !2, 'count'
         21        DO_FCALL                                      0  $16     
         22        SEND_VAR                                                 $16
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Class A:
Function count:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4rICv
function name:  count
number of ops:  4
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   BIND_STATIC                                              !0
    6     1        PRE_INC                                          ~1      !0
          2      > RETURN                                                   ~1
    7     3*     > RETURN                                                   null

End of function count

End of class A.

Class B:
Function count:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4rICv
function name:  count
number of ops:  4
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   BIND_STATIC                                              !0
    6     1        PRE_INC                                          ~1      !0
          2      > RETURN                                                   ~1
    7     3*     > RETURN                                                   null

End of function count

End of class B.

Generated using Vulcan Logic Dumper, using php 8.0.0


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