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<?php echo preg_replace('/.*?(?<columnname>`.+?`|\S+)\s*(?<operator>=|<|>|<>)\s*(?<value>`.+?`|\S+)/', '$1_$2', 'algo = asslgo AND caca=8');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3vRjo
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   INIT_FCALL                                               'preg_replace'
          1        SEND_VAL                                                 '%2F.%2A%3F%28%3F%3Ccolumnname%3E%60.%2B%3F%60%7C%5CS%2B%29%5Cs%2A%28%3F%3Coperator%3E%3D%7C%3C%7C%3E%7C%3C%3E%29%5Cs%2A%28%3F%3Cvalue%3E%60.%2B%3F%60%7C%5CS%2B%29%2F'
          2        SEND_VAL                                                 '%241_%242'
          3        SEND_VAL                                                 'algo+++++%3D++++asslgo+AND+caca%3D8'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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