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<?php $_POST = [ 'wind_1' => 'hk', 'hamburger_66' => 'foo', 'wind_2' => 'pop', 'wind_25' => 'another', 'bar_111' => 'bar' ]; echo max(preg_replace('~^(?:wind_|.*)~', '', array_keys($_POST)));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tgZ4B
function name:  (null)
number of ops:  16
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   FETCH_W                      global              $0      '_POST'
          1        ASSIGN                                                   $0, <array>
   11     2        INIT_FCALL                                               'max'
          3        INIT_FCALL                                               'preg_replace'
          4        SEND_VAL                                                 '%7E%5E%28%3F%3Awind_%7C.%2A%29%7E'
          5        SEND_VAL                                                 ''
          6        INIT_FCALL                                               'array_keys'
          7        FETCH_R                      global              ~2      '_POST'
          8        SEND_VAL                                                 ~2
          9        DO_ICALL                                         $3      
         10        SEND_VAR                                                 $3
         11        DO_ICALL                                         $4      
         12        SEND_VAR                                                 $4
         13        DO_ICALL                                         $5      
         14        ECHO                                                     $5
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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