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<?php $a = (object) ["a" => "b"]; $b = (object) ["b" => "b"]; var_dump($a > $b); // 0
based on gAM4U
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/PiXev
function name:  (null)
number of ops:  9
compiled vars:  !0 = $a, !1 = $b
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   CAST                                          8  ~2      <array>
         1        ASSIGN                                                   !0, ~2
   4     2        CAST                                          8  ~4      <array>
         3        ASSIGN                                                   !1, ~4
   5     4        INIT_FCALL                                               'var_dump'
         5        IS_SMALLER                                       ~6      !1, !0
         6        SEND_VAL                                                 ~6
         7        DO_ICALL                                                 
         8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0