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<?php preg_match('/\w+\.dev\.weebly\.net/', "http://devonweebly.dev.weebly.net/sdfdsf.html", $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lrmYt
function name:  (null)
number of ops:  6
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5Cw%2B%5C.dev%5C.weebly%5C.net%2F'
          2        SEND_VAL                                                 'http%3A%2F%2Fdevonweebly.dev.weebly.net%2Fsdfdsf.html'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                                 
          5      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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