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<?php echo 'locale: ' . setlocale(LC_ALL, 0) . PHP_EOL; echo preg_replace('/(*UCP)\b/', '<$0>', 'and рублей').PHP_EOL; echo preg_replace('/(*UTF8)\b/', '<$0>', 'and рублей').PHP_EOL; echo preg_replace('/\b/u', '<$0>', 'and рублей').PHP_EOL; var_dump(setlocale(LC_ALL, 0));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qq7pF
function name:  (null)
number of ops:  36
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'setlocale'
          1        SEND_VAL                                                 6
          2        SEND_VAL                                                 0
          3        DO_ICALL                                         $0      
          4        CONCAT                                           ~1      'locale%3A+', $0
          5        CONCAT                                           ~2      ~1, '%0A'
          6        ECHO                                                     ~2
    3     7        INIT_FCALL                                               'preg_replace'
          8        SEND_VAL                                                 '%2F%28%2AUCP%29%5Cb%2F'
          9        SEND_VAL                                                 '%3C%240%3E'
         10        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         11        DO_ICALL                                         $3      
         12        CONCAT                                           ~4      $3, '%0A'
         13        ECHO                                                     ~4
    4    14        INIT_FCALL                                               'preg_replace'
         15        SEND_VAL                                                 '%2F%28%2AUTF8%29%5Cb%2F'
         16        SEND_VAL                                                 '%3C%240%3E'
         17        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         18        DO_ICALL                                         $5      
         19        CONCAT                                           ~6      $5, '%0A'
         20        ECHO                                                     ~6
    5    21        INIT_FCALL                                               'preg_replace'
         22        SEND_VAL                                                 '%2F%5Cb%2Fu'
         23        SEND_VAL                                                 '%3C%240%3E'
         24        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         25        DO_ICALL                                         $7      
         26        CONCAT                                           ~8      $7, '%0A'
         27        ECHO                                                     ~8
    6    28        INIT_FCALL                                               'var_dump'
         29        INIT_FCALL                                               'setlocale'
         30        SEND_VAL                                                 6
         31        SEND_VAL                                                 0
         32        DO_ICALL                                         $9      
         33        SEND_VAR                                                 $9
         34        DO_ICALL                                                 
         35      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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