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<?php $char_set = 'a-z_'; $val = 'login_form'; var_dump(preg_quote($char_set, '/')); $sDomain_name = 'your-domain.com'; $db_domain_name = 'your-domain.com'; var_dump(preg_match('/(^|\.)'.preg_quote($sDomain_name).'($|:[0-9]+)/i', $db_domain_name));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9Q5iO
function name:  (null)
number of ops:  24
compiled vars:  !0 = $char_set, !1 = $val, !2 = $sDomain_name, !3 = $db_domain_name
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'a-z_'
    4     1        ASSIGN                                                   !1, 'login_form'
    5     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'preg_quote'
          4        SEND_VAR                                                 !0
          5        SEND_VAL                                                 '%2F'
          6        DO_ICALL                                         $6      
          7        SEND_VAR                                                 $6
          8        DO_ICALL                                                 
    7     9        ASSIGN                                                   !2, 'your-domain.com'
    8    10        ASSIGN                                                   !3, 'your-domain.com'
    9    11        INIT_FCALL                                               'var_dump'
         12        INIT_FCALL                                               'preg_match'
         13        INIT_FCALL                                               'preg_quote'
         14        SEND_VAR                                                 !2
         15        DO_ICALL                                         $10     
         16        CONCAT                                           ~11     '%2F%28%5E%7C%5C.%29', $10
         17        CONCAT                                           ~12     ~11, '%28%24%7C%3A%5B0-9%5D%2B%29%2Fi'
         18        SEND_VAL                                                 ~12
         19        SEND_VAR                                                 !3
         20        DO_ICALL                                         $13     
         21        SEND_VAR                                                 $13
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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