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<?php $slug = '/job/hello-this-is-my-job-posting-for-a-daycare-im-looking-for-in-91770-rosemead-california-12345'; $slugLimit = 70; echo preg_replace_callback( '~^(?:[^-]*-)*(?=(in-\d{5}-[^-]*-[^-]*-\d*)$)~u', fn($m) => preg_replace( '~^.{0,' . ($slugLimit - mb_strlen($m[1]) - 1) . '}-\K.*~u', '', $m[0] ), $slug );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EfthD
function name:  (null)
number of ops:  11
compiled vars:  !0 = $slug, !1 = $slugLimit
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '%2Fjob%2Fhello-this-is-my-job-posting-for-a-daycare-im-looking-for-in-91770-rosemead-california-12345'
    5     1        ASSIGN                                                       !1, 70
    7     2        INIT_FCALL                                                   'preg_replace_callback'
    8     3        SEND_VAL                                                     '%7E%5E%28%3F%3A%5B%5E-%5D%2A-%29%2A%28%3F%3D%28in-%5Cd%7B5%7D-%5B%5E-%5D%2A-%5B%5E-%5D%2A-%5Cd%2A%29%24%29%7Eu'
    9     4        DECLARE_LAMBDA_FUNCTION                              ~4      [0]
          5        BIND_LEXICAL                                                 ~4, !1
   13     6        SEND_VAL                                                     ~4
   14     7        SEND_VAR                                                     !0
    7     8        DO_ICALL                                             $5      
   14     9        ECHO                                                         $5
   15    10      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EfthD
function name:  {closure:/in/EfthD:9}
number of ops:  15
compiled vars:  !0 = $m, !1 = $slugLimit
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    9     0  E >   RECV                                                 !0      
          1        BIND_STATIC                                                  !1
   10     2        INIT_FCALL                                                   'mb_strlen'
          3        FETCH_DIM_R                                          ~2      !0, 1
          4        SEND_VAL                                                     ~2
          5        DO_ICALL                                             $3      
          6        SUB                                                  ~4      !1, $3
          7        SUB                                                  ~5      ~4, 1
          8        CONCAT                                               ~6      '%7E%5E.%7B0%2C', ~5
          9        CONCAT                                               ~7      ~6, '%7D-%5CK.%2A%7Eu'
   12    10        FETCH_DIM_R                                          ~8      !0, 0
    9    11        FRAMELESS_ICALL_3                preg_replace        ~9      ~7, ''
   12    12        OP_DATA                                                      ~8
         13      > RETURN                                                       ~9
   13    14*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


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