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<?php $array1 = [[12 => 'new q sets'], [11 => 'common set']]; $array2 = [[11 => 'common set']]; var_export(array_diff_assoc($array1, $array2));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jIUcq
function name:  (null)
number of ops:  10
compiled vars:  !0 = $array1, !1 = $array2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    4     1        ASSIGN                                                       !1, <array>
    6     2        INIT_FCALL                                                   'var_export'
          3        INIT_FCALL                                                   'array_diff_assoc'
          4        SEND_VAR                                                     !0
          5        SEND_VAR                                                     !1
          6        DO_ICALL                                             $4      
          7        SEND_VAR                                                     $4
          8        DO_ICALL                                                     
          9      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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