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<?php $regex = '/^[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9][-a-z0-9]*\.)*(?:[a-z0-9][-a-z0-9]{0,62})\.(?:(?:[a-z]{2}\.)?[a-z]{2,4}|museum|travel)$/i'; $email = 'uni-direct@uws.ac.uk'; preg_match_all($regex, $email, $matches); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KOWQY
function name:  (null)
number of ops:  11
compiled vars:  !0 = $regex, !1 = $email, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, '%2F%5E%5Ba-z0-9%21%23%24%25%26%27%2A%2B%5C%2F%3D%3F%5E_%60%7B%7C%7D%7E-%5D%2B%28%3F%3A%5C.%5Ba-z0-9%21%23%24%25%26%27%2A%2B%5C%2F%3D%3F%5E_%60%7B%7C%7D%7E-%5D%2B%29%2A%40%28%3F%3A%5Ba-z0-9%5D%5B-a-z0-9%5D%2A%5C.%29%2A%28%3F%3A%5Ba-z0-9%5D%5B-a-z0-9%5D%7B0%2C62%7D%29%5C.%28%3F%3A%28%3F%3A%5Ba-z%5D%7B2%7D%5C.%29%3F%5Ba-z%5D%7B2%2C4%7D%7Cmuseum%7Ctravel%29%24%2Fi'
    5     1        ASSIGN                                                   !1, 'uni-direct%40uws.ac.uk'
    6     2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
    7     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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