3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function foo(array $a = NULL) {} } class B extends A { function foo(?array $a = NULL) {} } class C extends B { function foo(array $a = NULL) {} }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CYFMS
function name:  (null)
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E > > RETURN                                                   1

Class A:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CYFMS
function name:  foo
number of ops:  2
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV_INIT                                        !0      null
          1      > RETURN                                                   null

End of function foo

End of class A.

Class B:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CYFMS
function name:  foo
number of ops:  2
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   RECV_INIT                                        !0      null
          1      > RETURN                                                   null

End of function foo

End of class B.

Class C:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CYFMS
function name:  foo
number of ops:  2
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV_INIT                                        !0      null
          1      > RETURN                                                   null

End of function foo

End of class C.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
137.32 ms | 943 KiB | 13 Q