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<?php $array = array('', ''); var_dump( array_unique( array_diff_assoc( $array, array_unique( $array ) ) ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0mVaK
function name:  (null)
number of ops:  15
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    6     1        INIT_FCALL                                               'var_dump'
    7     2        INIT_FCALL                                               'array_unique'
          3        INIT_FCALL                                               'array_diff_assoc'
          4        SEND_VAR                                                 !0
          5        INIT_FCALL                                               'array_unique'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                         $4      
         12        SEND_VAR                                                 $4
         13        DO_ICALL                                                 
    8    14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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