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<?php $string = 'I-like-candy-and-foo-bar-sandwiches'; var_export(preg_split('~(?<!foo)-(?!bar)~', $string));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BUGvP
function name:  (null)
number of ops:  9
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'I-like-candy-and-foo-bar-sandwiches'
    3     1        INIT_FCALL                                               'var_export'
          2        INIT_FCALL                                               'preg_split'
          3        SEND_VAL                                                 '%7E%28%3F%3C%21foo%29-%28%3F%21bar%29%7E'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
          8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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