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<?php $html = '<ul class="foo"> <li>Item 1</li> <li>Item 2</li> <li>Item 3</li> </ul>'; $newHtml = preg_replace("/(?<=<li>)(.*)(?=<\/li>)/", '<svg class="icon"><use xlink:href="#foo"></use></svg>$1', $html); echo $newHtml;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UMQNK
function name:  (null)
number of ops:  6
compiled vars:  !0 = $html, !1 = $newHtml
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                       !0, '%3Cul+class%3D%22foo%22%3E%0A++%3Cli%3EItem+1%3C%2Fli%3E%0A++%3Cli%3EItem+2%3C%2Fli%3E%0A++%3Cli%3EItem+3%3C%2Fli%3E%0A%3C%2Ful%3E'
    8     1        FRAMELESS_ICALL_3                preg_replace        ~3      '%2F%28%3F%3C%3D%3Cli%3E%29%28.%2A%29%28%3F%3D%3C%5C%2Fli%3E%29%2F', '%3Csvg+class%3D%22icon%22%3E%3Cuse+xlink%3Ahref%3D%22%23foo%22%3E%3C%2Fuse%3E%3C%2Fsvg%3E%241'
          2        OP_DATA                                                      !0
          3        ASSIGN                                                       !1, ~3
   10     4        ECHO                                                         !1
   11     5      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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