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<?php var_dump(preg_replace('/()/u', '*', "a\xc3\x84b")); var_dump(preg_last_error()); var_dump(PCRE_VERSION);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AMq5N
function name:  (null)
number of ops:  17
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%28%29%2Fu'
          3        SEND_VAL                                                 '%2A'
          4        SEND_VAL                                                 'a%C3%84b'
          5        DO_ICALL                                         $0      
          6        SEND_VAR                                                 $0
          7        DO_ICALL                                                 
    4     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'preg_last_error'
         10        DO_ICALL                                         $2      
         11        SEND_VAR                                                 $2
         12        DO_ICALL                                                 
    5    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAL                                                 '10.35+2020-05-09'
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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