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<?php preg_match_all('/value="(\d+)"/', '<input type="hidden" name="CK" value="992431121310420"/>', $match); print_r($match);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/7glbm
function name:  (null)
number of ops:  9
compiled vars:  !0 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match_all'
          1        SEND_VAL                                                 '%2Fvalue%3D%22%28%5Cd%2B%29%22%2F'
          2        SEND_VAL                                                 '%3Cinput+type%3D%22hidden%22+name%3D%22CK%22+value%3D%22992431121310420%22%2F%3E'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
    3     5        INIT_FCALL                                               'print_r'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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