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<?php $str = 'There is something to type here. This is an example text'; echo preg_replace( '~((?:\S*?\s){5})~', "$1\n", $str );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fIUIE
function name:  (null)
number of ops:  8
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'There+is+something+to+type+here.+This+is+an+example+text'
    4     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%7E%28%28%3F%3A%5CS%2A%3F%5Cs%29%7B5%7D%29%7E'
          3        SEND_VAL                                                 '%241%0A'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        ECHO                                                     $2
          7      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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