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<?php $subject = "#<LEFT_KEY"; echo preg_match('/^#([\!,\<,\>,\=,\%])?([a-z,_]*[\.]?)?([A-Z,_]+)$/', $subject);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ThhDY
function name:  (null)
number of ops:  7
compiled vars:  !0 = $subject
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%23%3CLEFT_KEY'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%23%28%5B%5C%21%2C%5C%3C%2C%5C%3E%2C%5C%3D%2C%5C%25%5D%29%3F%28%5Ba-z%2C_%5D%2A%5B%5C.%5D%3F%29%3F%28%5BA-Z%2C_%5D%2B%29%24%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $2      
          5        ECHO                                                     $2
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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