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<?php echo preg_replace('~[^\p{Lu}]+~u', '', 'Az+0ǻÉé');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lff3E
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_replace'
          1        SEND_VAL                                                 '%7E%5B%5E%5Cp%7BLu%7D%5D%2B%7Eu'
          2        SEND_VAL                                                 ''
          3        SEND_VAL                                                 'Az%2B0%C7%BB%C3%89%C3%A9'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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