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<?php $a = new SplFixedArray(1); $a[0] = 1; //$a[0]++; var_dump($a);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LiSaF
function name:  (null)
number of ops:  10
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $1      'SplFixedArray'
          1        SEND_VAL_EX                                              1
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $1
    4     4        ASSIGN_DIM                                               !0, 0
          5        OP_DATA                                                  1
    7     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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