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<?php echo preg_split('/(\d+)/', 'Subject', null, PREG_SPLIT_DELIM_CAPTURE)[1];
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HXCo2
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_split'
          1        SEND_VAL                                                 '%2F%28%5Cd%2B%29%2F'
          2        SEND_VAL                                                 'Subject'
          3        SEND_VAL                                                 null
          4        SEND_VAL                                                 2
          5        DO_ICALL                                         $0      
          6        FETCH_DIM_R                                      ~1      $0, 1
          7        ECHO                                                     ~1
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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