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<?php $str = 'REXEL : Votre dossier Primexel n°@ref_dossier@ expire le @date_expiration@'; preg_match('/@([^@]+)@/i', $str, $matches, PREG_OFFSET_CAPTURE); var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CFWVR
function name:  (null)
number of ops:  11
compiled vars:  !0 = $str, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'REXEL+%3A+Votre+dossier+Primexel+n%C2%B0%40ref_dossier%40+expire+le+%40date_expiration%40'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%40%28%5B%5E%40%5D%2B%29%40%2Fi'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        SEND_VAL                                                 256
          6        DO_ICALL                                                 
    4     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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