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<?php echo preg_replace('/[0-9!<>,;?=+()@#"°{}_$%:¤|]/u', '', "foobar_123123_&90481");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RUk4Z
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_replace'
          1        SEND_VAL                                                 '%2F%5B0-9%21%3C%3E%2C%3B%3F%3D%2B%28%29%40%23%22%C2%B0%7B%7D_%24%25%3A%C2%A4%7C%5D%2Fu'
          2        SEND_VAL                                                 ''
          3        SEND_VAL                                                 'foobar_123123_%2690481'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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