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<?php $a = array(); $a[] = array('1',null); $a[] = array('1','2'); $a[] = array('2',null); $a[] = array('2','2'); $a[] = array('1',null); $a[] = array('2','2'); print_r(array_map("unserialize", array_unique(array_map("serialize", $a))));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gWpOK
function name:  (null)
number of ops:  28
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN_DIM                                               !0
          2        OP_DATA                                                  <array>
    5     3        ASSIGN_DIM                                               !0
          4        OP_DATA                                                  <array>
    6     5        ASSIGN_DIM                                               !0
          6        OP_DATA                                                  <array>
    7     7        ASSIGN_DIM                                               !0
          8        OP_DATA                                                  <array>
    8     9        ASSIGN_DIM                                               !0
         10        OP_DATA                                                  <array>
    9    11        ASSIGN_DIM                                               !0
         12        OP_DATA                                                  <array>
   11    13        INIT_FCALL                                               'print_r'
         14        INIT_FCALL                                               'array_map'
         15        SEND_VAL                                                 'unserialize'
         16        INIT_FCALL                                               'array_unique'
         17        INIT_FCALL                                               'array_map'
         18        SEND_VAL                                                 'serialize'
         19        SEND_VAR                                                 !0
         20        DO_ICALL                                         $8      
         21        SEND_VAR                                                 $8
         22        DO_ICALL                                         $9      
         23        SEND_VAR                                                 $9
         24        DO_ICALL                                         $10     
         25        SEND_VAR                                                 $10
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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