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<?php $extra = []; $seriesMaxNum = max(array_unique(array_column($extra, "pacsfile_series_number"))) + 1;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2RRl7
function name:  (null)
number of ops:  14
compiled vars:  !0 = $extra, !1 = $seriesMaxNum
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    5     1        INIT_FCALL                                               'max'
          2        INIT_FCALL                                               'array_unique'
          3        INIT_FCALL                                               'array_column'
          4        SEND_VAR                                                 !0
          5        SEND_VAL                                                 'pacsfile_series_number'
          6        DO_ICALL                                         $3      
          7        SEND_VAR                                                 $3
          8        DO_ICALL                                         $4      
          9        SEND_VAR                                                 $4
         10        DO_ICALL                                         $5      
         11        ADD                                              ~6      $5, 1
         12        ASSIGN                                                   !1, ~6
         13      > RETURN                                                   1

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