3v4l.org

run code in 500+ PHP versions simultaneously
<?php $str = '001110000100001100001'; preg_match_all('~ (?<=\K1) .... 1 ~x', $str, $matches); print_r($matches[0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/cGfn9
function name:  (null)
number of ops:  11
compiled vars:  !0 = $str, !1 = $matches
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '001110000100001100001'
    5     1        INIT_FCALL                                                   'preg_match_all'
          2        SEND_VAL                                                     '%7E+%28%3F%3C%3D%5CK1%29+....+1+%7Ex'
          3        SEND_VAR                                                     !0
          4        SEND_REF                                                     !1
          5        DO_ICALL                                                     
    7     6        INIT_FCALL                                                   'print_r'
          7        FETCH_DIM_R                                          ~4      !1, 0
          8        SEND_VAL                                                     ~4
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
158.73 ms | 1992 KiB | 15 Q