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<?php $str = '\u062f\u0648\u0646\u0647 \u0645\u0646\u2665\u2665\u2665\u2665'; $str = preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/', function ($match) { return mb_convert_encoding(pack('H*', $match[1]), 'UTF-8', 'UCS-2BE'); } , $str); echo $str;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pSnOZ
function name:  (null)
number of ops:  10
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%5Cu062f%5Cu0648%5Cu0646%5Cu0647+%5Cu0645%5Cu0646%5Cu2665%5Cu2665%5Cu2665%5Cu2665'
    3     1        INIT_FCALL                                               'preg_replace_callback'
          2        SEND_VAL                                                 '%2F%5C%5Cu%28%5B0-9a-fA-F%5D%7B4%7D%29%2F'
    4     3        DECLARE_LAMBDA_FUNCTION                          ~2      [0]
    6     4        SEND_VAL                                                 ~2
    7     5        SEND_VAR                                                 !0
    3     6        DO_ICALL                                         $3      
          7        ASSIGN                                                   !0, $3
    8     8        ECHO                                                     !0
          9      > 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/pSnOZ
function name:  {closure}
number of ops:  13
compiled vars:  !0 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   RECV                                             !0      
    5     1        INIT_FCALL                                               'mb_convert_encoding'
          2        INIT_FCALL                                               'pack'
          3        SEND_VAL                                                 'H%2A'
          4        FETCH_DIM_R                                      ~1      !0, 1
          5        SEND_VAL                                                 ~1
          6        DO_ICALL                                         $2      
          7        SEND_VAR                                                 $2
          8        SEND_VAL                                                 'UTF-8'
          9        SEND_VAL                                                 'UCS-2BE'
         10        DO_ICALL                                         $3      
         11      > RETURN                                                   $3
    6    12*     > RETURN                                                   null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.0.0


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