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<?php // https://regex101.com/r/WfNnwo/1 var_dump( preg_match('/^([ \x{00C0}-\x{00FF}a-zA-Z\'\-]){2,30}$/', 'Andréçøö') );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jQ5H0
function name:  (null)
number of ops:  8
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%28%5B+%5Cx%7B00C0%7D-%5Cx%7B00FF%7Da-zA-Z%27%5C-%5D%29%7B2%2C30%7D%24%2F'
          3        SEND_VAL                                                 'Andr%C3%A9%C3%A7%C3%B8%C3%B6'
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        DO_ICALL                                                 
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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