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<?php echo 'locale: ' . setlocale(LC_ALL, 0); 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/3JJLB
function name:  (null)
number of ops:  35
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        ECHO                                                     ~1
    3     6        INIT_FCALL                                               'preg_replace'
          7        SEND_VAL                                                 '%2F%28%2AUCP%29%5Cb%2F'
          8        SEND_VAL                                                 '%3C%240%3E'
          9        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         10        DO_ICALL                                         $2      
         11        CONCAT                                           ~3      $2, '%0A'
         12        ECHO                                                     ~3
    4    13        INIT_FCALL                                               'preg_replace'
         14        SEND_VAL                                                 '%2F%28%2AUTF8%29%5Cb%2F'
         15        SEND_VAL                                                 '%3C%240%3E'
         16        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         17        DO_ICALL                                         $4      
         18        CONCAT                                           ~5      $4, '%0A'
         19        ECHO                                                     ~5
    5    20        INIT_FCALL                                               'preg_replace'
         21        SEND_VAL                                                 '%2F%5Cb%2Fu'
         22        SEND_VAL                                                 '%3C%240%3E'
         23        SEND_VAL                                                 'and+%D1%80%D1%83%D0%B1%D0%BB%D0%B5%D0%B9'
         24        DO_ICALL                                         $6      
         25        CONCAT                                           ~7      $6, '%0A'
         26        ECHO                                                     ~7
    6    27        INIT_FCALL                                               'var_dump'
         28        INIT_FCALL                                               'setlocale'
         29        SEND_VAL                                                 6
         30        SEND_VAL                                                 0
         31        DO_ICALL                                         $8      
         32        SEND_VAR                                                 $8
         33        DO_ICALL                                                 
         34      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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