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<?php preg_match('#^((http:|https:)?//(www\.)?moscow\.megafon\.ru|/[^/]).*$#sU', 'http://moscow.megafon.ru/internet/tariffs/', $m); var_dump($m);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Fiulu
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                                                 '%23%5E%28%28http%3A%7Chttps%3A%29%3F%2F%2F%28www%5C.%29%3Fmoscow%5C.megafon%5C.ru%7C%2F%5B%5E%2F%5D%29.%2A%24%23sU'
          2        SEND_VAL                                                 'http%3A%2F%2Fmoscow.megafon.ru%2Finternet%2Ftariffs%2F'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
    4     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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