3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a(){ $b =123; function b(){ echo $b; } echo b(); } a();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/krs1K
function name:  (null)
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   INIT_FCALL                                               'a'
          1        DO_FCALL                                      0          
          2      > RETURN                                                   1

Function a:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/krs1K
function name:  a
number of ops:  6
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, 123
    5     1        DECLARE_FUNCTION                                         'b'
    9     2        INIT_FCALL_BY_NAME                                       'b'
          3        DO_FCALL                                      0  $2      
          4        ECHO                                                     $2
   10     5      > RETURN                                                   null

End of function a

Function %00b%2Fin%2Fkrs1K%3A5%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/krs1K
function name:  b
number of ops:  2
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   ECHO                                                     !0
    7     1      > RETURN                                                   null

End of function %00b%2Fin%2Fkrs1K%3A5%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.83 ms | 1397 KiB | 14 Q