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<?php $f = 'IMG_1474.PNG'; preg_match('/(.*)([.][^.]+$)/', $f, $match); echo preg_replace('/(.*)([.][^.]+$)/', '$1' . time() . '$2', $f); print_r($match);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VgDWJ
function name:  (null)
number of ops:  20
compiled vars:  !0 = $f, !1 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'IMG_1474.PNG'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%28.%2A%29%28%5B.%5D%5B%5E.%5D%2B%24%29%2F'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    4     6        INIT_FCALL                                               'preg_replace'
          7        SEND_VAL                                                 '%2F%28.%2A%29%28%5B.%5D%5B%5E.%5D%2B%24%29%2F'
          8        INIT_FCALL                                               'time'
          9        DO_ICALL                                         $4      
         10        CONCAT                                           ~5      '%241', $4
         11        CONCAT                                           ~6      ~5, '%242'
         12        SEND_VAL                                                 ~6
         13        SEND_VAR                                                 !0
         14        DO_ICALL                                         $7      
         15        ECHO                                                     $7
    5    16        INIT_FCALL                                               'print_r'
         17        SEND_VAR                                                 !1
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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