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<?php $input = "<style> poopface <?style>"; preg_match('~<style>(.*?)]~', $input, $output); echo $output[1]; // 256 ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/o7nn9
function name:  (null)
number of ops:  9
compiled vars:  !0 = $input, !1 = $output
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3Cstyle%3E+poopface+%3C%3Fstyle%3E'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%7E%3Cstyle%3E%28.%2A%3F%29%5D%7E'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    4     6        FETCH_DIM_R                                      ~4      !1, 1
          7        ECHO                                                     ~4
    5     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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