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<?php $re = '/"\K[\w-]+(\.jpg)(?=")/'; $str = ';s:27:"2018/08/hello-there-003.jpg";s:5:"sizes";a:23:{s:9:"thumbnail";a:4:{s:4:"file";s:27:"hello-there-003-150x150.jpg";s:5:"width";i:150;s:6:"height";i:150;s:9:"mime-type";s:10:"image/jpeg";}s:6:"medium";a:4:{s:4:"file";s:27:"hello-there-003-300x200.jpg" '; $subst = 'replacement$1'; $result = preg_replace($re, $subst, $str); echo $result;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SR7UZ
function name:  (null)
number of ops:  8
compiled vars:  !0 = $re, !1 = $str, !2 = $subst, !3 = $result
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '%2F%22%5CK%5B%5Cw-%5D%2B%28%5C.jpg%29%28%3F%3D%22%29%2F'
    4     1        ASSIGN                                                       !1, '%3Bs%3A27%3A%222018%2F08%2Fhello-there-003.jpg%22%3Bs%3A5%3A%22sizes%22%3Ba%3A23%3A%7Bs%3A9%3A%22thumbnail%22%3Ba%3A4%3A%7Bs%3A4%3A%22file%22%3Bs%3A27%3A%22hello-there-003-150x150.jpg%22%3Bs%3A5%3A%22width%22%3Bi%3A150%3Bs%3A6%3A%22height%22%3Bi%3A150%3Bs%3A9%3A%22mime-type%22%3Bs%3A10%3A%22image%2Fjpeg%22%3B%7Ds%3A6%3A%22medium%22%3Ba%3A4%3A%7Bs%3A4%3A%22file%22%3Bs%3A27%3A%22hello-there-003-300x200.jpg%22%0A'
    6     2        ASSIGN                                                       !2, 'replacement%241'
    8     3        FRAMELESS_ICALL_3                preg_replace        ~7      !0, !2
          4        OP_DATA                                                      !1
          5        ASSIGN                                                       !3, ~7
   10     6        ECHO                                                         !3
   11     7      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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