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<?php $a = array(); $a[0] = &$a; var_dump($a === $a[0]); var_dump($a == $a[0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pCoou
function name:  (null)
number of ops:  14
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        FETCH_DIM_W                                      $2      !0, 0
          2        ASSIGN_REF                                               $2, !0
    5     3        INIT_FCALL                                               'var_dump'
          4        FETCH_DIM_R                                      ~4      !0, 0
          5        IS_IDENTICAL                                     ~5      !0, ~4
          6        SEND_VAL                                                 ~5
          7        DO_ICALL                                                 
    6     8        INIT_FCALL                                               'var_dump'
          9        FETCH_DIM_R                                      ~7      !0, 0
         10        IS_EQUAL                                         ~8      !0, ~7
         11        SEND_VAL                                                 ~8
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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