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<?php var_dump( strpos('.example.com.hacked', '.example.com'), preg_match('/\.example.com$/', 'www.example.com'), preg_match('/\.example.com$/', 'www.example.com.hacked'), );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/s0iih
function name:  (null)
number of ops:  18
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
    4     1        INIT_FCALL                                               'strpos'
          2        SEND_VAL                                                 '.example.com.hacked'
          3        SEND_VAL                                                 '.example.com'
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
    5     6        INIT_FCALL                                               'preg_match'
          7        SEND_VAL                                                 '%2F%5C.example.com%24%2F'
          8        SEND_VAL                                                 'www.example.com'
          9        DO_ICALL                                         $1      
         10        SEND_VAR                                                 $1
    6    11        INIT_FCALL                                               'preg_match'
         12        SEND_VAL                                                 '%2F%5C.example.com%24%2F'
         13        SEND_VAL                                                 'www.example.com.hacked'
         14        DO_ICALL                                         $2      
         15        SEND_VAR                                                 $2
         16        DO_ICALL                                                 
    7    17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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