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<?php $a = ['a', ['b', ['c']]]; function cb($i){ $i = 'z'; } function cb2(&$i) { $i = 'z'; } array_walk_recursive($a, 'cb' ); var_dump($a); array_walk_recursive($a, 'cb2' ); var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OfgZi
function name:  (null)
number of ops:  16
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    7     1        INIT_FCALL                                               'array_walk_recursive'
          2        SEND_REF                                                 !0
          3        SEND_VAL                                                 'cb'
          4        DO_ICALL                                                 
    8     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
   10     8        INIT_FCALL                                               'array_walk_recursive'
          9        SEND_REF                                                 !0
         10        SEND_VAL                                                 'cb2'
         11        DO_ICALL                                                 
   11    12        INIT_FCALL                                               'var_dump'
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Function cb:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OfgZi
function name:  cb
number of ops:  3
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
          1        ASSIGN                                                   !0, 'z'
          2      > RETURN                                                   null

End of function cb

Function cb2:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OfgZi
function name:  cb2
number of ops:  3
compiled vars:  !0 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
          1        ASSIGN                                                   !0, 'z'
          2      > RETURN                                                   null

End of function cb2

Generated using Vulcan Logic Dumper, using php 8.0.0


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