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<?php $admin = '@^admin/(?P<controller>[a-z-]+)/(?P<id>\d+)/(?P<action>[a-z-]+)$@i'; $match = preg_match($admin, "admin/users/3/delete", $matches); var_dump($match, $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aFj4O
function name:  (null)
number of ops:  12
compiled vars:  !0 = $admin, !1 = $match, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%40%5Eadmin%2F%28%3FP%3Ccontroller%3E%5Ba-z-%5D%2B%29%2F%28%3FP%3Cid%3E%5Cd%2B%29%2F%28%3FP%3Caction%3E%5Ba-z-%5D%2B%29%24%40i'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 'admin%2Fusers%2F3%2Fdelete'
          4        SEND_REF                                                 !2
          5        DO_ICALL                                         $4      
          6        ASSIGN                                                   !1, $4
    4     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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