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<?php $a = ["foo"]; function bar(&$b) { $b[] = "bar"; } array_walk( $a, "bar"); print_r( $a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dHIkZ
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    8     1        INIT_FCALL                                               'array_walk'
          2        SEND_REF                                                 !0
          3        SEND_VAL                                                 'bar'
          4        DO_ICALL                                                 
    9     5        INIT_FCALL                                               'print_r'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dHIkZ
function name:  bar
number of ops:  4
compiled vars:  !0 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  'bar'
    6     3      > RETURN                                                   null

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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