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<?php var_dump( preg_match_all('/((?:(?:[^\\\\])|(?:(\\\\){2}))+)/', "asdf\\\\dsf\dsfaf", $matches) ); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4CtVX
function name:  (null)
number of ops:  12
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_match_all'
          2        SEND_VAL                                                 '%2F%28%28%3F%3A%28%3F%3A%5B%5E%5C%5C%5D%29%7C%28%3F%3A%28%5C%5C%29%7B2%7D%29%29%2B%29%2F'
          3        SEND_VAL                                                 'asdf%5C%5Cdsf%5Cdsfaf'
          4        SEND_REF                                                 !0
          5        DO_ICALL                                         $1      
          6        SEND_VAR                                                 $1
          7        DO_ICALL                                                 
    3     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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