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<?php function f(){return array(1=>99);} $x = f()[1]; print $x;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tamUd
function name:  (null)
number of ops:  6
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'f'
          1        DO_FCALL                                      0  $1      
          2        FETCH_DIM_R                                      ~2      $1, 1
          3        ASSIGN                                                   !0, ~2
    4     4        ECHO                                                     !0
          5      > RETURN                                                   1

Function f:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tamUd
function name:  f
number of ops:  2
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E > > RETURN                                                   <array>
          1*     > RETURN                                                   null

End of function f

Generated using Vulcan Logic Dumper, using php 8.0.0


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