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<?php echo preg_replace('#(@).*( |$)#Ui', '', "roman with @vecky have to visited1324 @sony @abcd");
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Gjdsp
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_replace'
          1        SEND_VAL                                                 '%23%28%40%29.%2A%28+%7C%24%29%23Ui'
          2        SEND_VAL                                                 ''
          3        SEND_VAL                                                 'roman+with+%40vecky+have+to+visited1324+%40sony+%40abcd'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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