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<?php $a = array(); $a[] = &$a; var_dump(in_array($a, $a, true));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IZWOl
function name:  (null)
number of ops:  12
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
          2        ASSIGN_REF                                               $2, !0
    5     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'in_array'
          5        SEND_VAR                                                 !0
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 <true>
          8        DO_ICALL                                         $4      
          9        SEND_VAR                                                 $4
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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