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<?php function foo($a): void { $a[0] = [1, 2, 3]; } $foo = 1; $r = &$foo; foo([$r]); var_dump($foo);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9ftLT
function name:  (null)
number of ops:  10
compiled vars:  !0 = $foo, !1 = $r
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, 1
    9     1        ASSIGN_REF                                               !1, !0
   11     2        INIT_FCALL                                               'foo'
          3        INIT_ARRAY                                       ~4      !1
          4        SEND_VAL                                                 ~4
          5        DO_FCALL                                      0          
   12     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9ftLT
function name:  foo
number of ops:  4
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    5     1        ASSIGN_DIM                                               !0, 0
          2        OP_DATA                                                  <array>
    6     3      > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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