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<?php $string = '<?php public function enum($value, ...$items) {}'; $tokens = token_get_all($string); print_r($tokens);
based on Do8JP
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/UTJR3
function name:  (null)
number of ops:  9
compiled vars:  !0 = $string, !1 = $tokens
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, '%3C%3Fphp+public+function+enum%28%24value%2C+...%24items%29+%7B%7D'
   3     1        INIT_FCALL                                               'token_get_all'
         2        SEND_VAR                                                 !0
         3        DO_ICALL                                         $3      
         4        ASSIGN                                                   !1, $3
   4     5        INIT_FCALL                                               'print_r'
         6        SEND_VAR                                                 !1
         7        DO_ICALL                                                 
         8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0