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<?php $pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)/(.*/)?+[/]{0,1}$#"; $pattern = "#^/([a-z]{2})/([a-zA-Z0-9_-]++)/([a-zA-Z0-9_-]++)((/.*+)?+)+/$#u"; $subject = '/en/user/login/foo/bar/'; var_dump(preg_match($pattern, $subject, $matches), $matches); $subject = '/en/user/login'; var_dump(preg_match($pattern, $subject, $matches), $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XXXnG
function name:  (null)
number of ops:  23
compiled vars:  !0 = $pattern, !1 = $subject, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%23%5E%2F%28%5Ba-z%5D%7B2%7D%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28.%2A%2F%29%3F%2B%5B%2F%5D%7B0%2C1%7D%24%23'
    3     1        ASSIGN                                                   !0, '%23%5E%2F%28%5Ba-z%5D%7B2%7D%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%2F%28%5Ba-zA-Z0-9_-%5D%2B%2B%29%28%28%2F.%2A%2B%29%3F%2B%29%2B%2F%24%23u'
    4     2        ASSIGN                                                   !1, '%2Fen%2Fuser%2Flogin%2Ffoo%2Fbar%2F'
    6     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'preg_match'
          5        SEND_VAR                                                 !0
          6        SEND_VAR                                                 !1
          7        SEND_REF                                                 !2
          8        DO_ICALL                                         $6      
          9        SEND_VAR                                                 $6
         10        SEND_VAR                                                 !2
         11        DO_ICALL                                                 
    8    12        ASSIGN                                                   !1, '%2Fen%2Fuser%2Flogin'
    9    13        INIT_FCALL                                               'var_dump'
         14        INIT_FCALL                                               'preg_match'
         15        SEND_VAR                                                 !0
         16        SEND_VAR                                                 !1
         17        SEND_REF                                                 !2
         18        DO_ICALL                                         $9      
         19        SEND_VAR                                                 $9
         20        SEND_VAR                                                 !2
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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