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<?php $s = "Stackoverflow is awesome"; $regex = '~(?=(\S+\s+\S+))|\S+(?=\s+\S+|$)~'; preg_match_all($regex, $s, $matches); print_r($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BnAkc
function name:  (null)
number of ops:  11
compiled vars:  !0 = $s, !1 = $regex, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'Stackoverflow+is+awesome'
    4     1        ASSIGN                                                   !1, '%7E%28%3F%3D%28%5CS%2B%5Cs%2B%5CS%2B%29%29%7C%5CS%2B%28%3F%3D%5Cs%2B%5CS%2B%7C%24%29%7E'
    5     2        INIT_FCALL                                               'preg_match_all'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        SEND_REF                                                 !2
          6        DO_ICALL                                                 
    6     7        INIT_FCALL                                               'print_r'
          8        SEND_VAR                                                 !2
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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