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<?php $string = "Let's observe obviously knowledgeable approaches that target helpful items succinctly"; echo preg_replace('~\S\K\S*\s*~u', '', $string);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NOrQb
function name:  (null)
number of ops:  5
compiled vars:  !0 = $string
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'Let%27s+observe+obviously+knowledgeable+approaches+that+target+helpful+items+succinctly'
    5     1        FRAMELESS_ICALL_3                preg_replace        ~2      '%7E%5CS%5CK%5CS%2A%5Cs%2A%7Eu', ''
          2        OP_DATA                                                      !0
          3        ECHO                                                         ~2
          4      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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