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<?php echo PCRE_VERSION; echo preg_match('/^([\pL\pN\pS-]+\.)[\pL]+$/', 'exämple.org'); echo ' but '; echo preg_match('/^([\pL\pN\pS-]+\.)[\pL]+$/', 'exömple.org');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dQYuo
function name:  (null)
number of ops:  13
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ECHO                                                     '10.35+2020-05-09'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%28%5B%5CpL%5CpN%5CpS-%5D%2B%5C.%29%5B%5CpL%5D%2B%24%2F'
          3        SEND_VAL                                                 'ex%C3%A4mple.org'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
    5     6        ECHO                                                     '+but+'
    6     7        INIT_FCALL                                               'preg_match'
          8        SEND_VAL                                                 '%2F%5E%28%5B%5CpL%5CpN%5CpS-%5D%2B%5C.%29%5B%5CpL%5D%2B%24%2F'
          9        SEND_VAL                                                 'ex%C3%B6mple.org'
         10        DO_ICALL                                         $1      
         11        ECHO                                                     $1
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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