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<?php $string = <<<JS function submitData(element_id, url, change_id) {... ... } ... window.addEventListener('beforeunload', function (e) { submitData(1, "http://mysite/metrics, 3");}); window.addEventListener('beforeunload', function (e) { submitData(1, "http://mysite/metrics, 2");}); window.addEventListener('beforeunload', function (e) { submitData(1, "http://mysite/metrics, 4");}); JS; $change_ids = [19, 7, 11]; vprintf( preg_replace('~metrics,\s*\K\d+~', '%d', $string), $change_ids );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MLOSN
function name:  (null)
number of ops:  9
compiled vars:  !0 = $string, !1 = $change_ids
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'function+submitData%28element_id%2C+url%2C+change_id%29+%7B...%0A++++...%0A%7D%0A%0A...+%0Awindow.addEventListener%28%27beforeunload%27%2C+function+%28e%29+%7B+submitData%281%2C+%22http%3A%2F%2Fmysite%2Fmetrics%2C+3%22%29%3B%7D%29%3B+window.addEventListener%28%27beforeunload%27%2C+function+%28e%29+%7B+submitData%281%2C+%22http%3A%2F%2Fmysite%2Fmetrics%2C+2%22%29%3B%7D%29%3B+window.addEventListener%28%27beforeunload%27%2C+function+%28e%29+%7B+submitData%281%2C+%22http%3A%2F%2Fmysite%2Fmetrics%2C+4%22%29%3B%7D%29%3B'
   12     1        ASSIGN                                                       !1, <array>
   14     2        INIT_FCALL                                                   'vprintf'
   15     3        FRAMELESS_ICALL_3                preg_replace        ~4      '%7Emetrics%2C%5Cs%2A%5CK%5Cd%2B%7E', '%25d'
          4        OP_DATA                                                      !0
          5        SEND_VAL                                                     ~4
   16     6        SEND_VAR                                                     !1
   14     7        DO_ICALL                                                     
   17     8      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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