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<?php preg_match("/([a-zA-Z0-9.-_~!$&'()*+,;=:@]+)/", 'abc?', $m); var_dump($m);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tDBc1
function name:  (null)
number of ops:  9
compiled vars:  !0 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%28%5Ba-zA-Z0-9.-_%7E%21%24%26%27%28%29%2A%2B%2C%3B%3D%3A%40%5D%2B%29%2F'
          2        SEND_VAL                                                 'abc%3F'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
    5     5        INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !0
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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