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<?php $s = 'thearea:北京/北京市/石景山区:9'; $s = preg_replace_callback("/^.+?:(.+?)\/(.+?)\/(.+?):.+?$/", function($match) { return $match[3]; }, $s); echo $s;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Z2bcN
function name:  (null)
number of ops:  10
compiled vars:  !0 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'thearea%3A%E5%8C%97%E4%BA%AC%2F%E5%8C%97%E4%BA%AC%E5%B8%82%2F%E7%9F%B3%E6%99%AF%E5%B1%B1%E5%8C%BA%3A9'
    3     1        INIT_FCALL                                               'preg_replace_callback'
          2        SEND_VAL                                                 '%2F%5E.%2B%3F%3A%28.%2B%3F%29%5C%2F%28.%2B%3F%29%5C%2F%28.%2B%3F%29%3A.%2B%3F%24%2F'
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FZ2bcN%3A3%240'
    5     4        SEND_VAL                                                 ~2
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $3      
    3     7        ASSIGN                                                   !0, $3
    6     8        ECHO                                                     !0
          9      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FZ2bcN%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Z2bcN
function name:  {closure}
number of ops:  4
compiled vars:  !0 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        FETCH_DIM_R                                      ~1      !0, 3
          2      > RETURN                                                   ~1
    5     3*     > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FZ2bcN%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


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