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<?php $code = "$1?1?2/:1$2?3?4?5/:2$3E/:3$8?1?2/:4$5$7E/:5$6$7E/:1$7E/:2$4/"; preg_match_all('~\$\K\d+~', $code, $matches); print_r($matches[0]);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/032Xc
function name:  (null)
number of ops:  11
compiled vars:  !0 = $code, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%241%3F1%3F2%2F%3A1%242%3F3%3F4%3F5%2F%3A2%243E%2F%3A3%248%3F1%3F2%2F%3A4%245%247E%2F%3A5%246%247E%2F%3A1%247E%2F%3A2%244%2F'
    3     1        INIT_FCALL                                               'preg_match_all'
          2        SEND_VAL                                                 '%7E%5C%24%5CK%5Cd%2B%7E'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    4     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 8.0.0


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