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<?php echo preg_replace('/(\{.+\})/sU', '<span id="\\1"></span>', 'Qwe {test}, {testie}, {not valid}');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Co2BT
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_replace'
          1        SEND_VAL                                                 '%2F%28%5C%7B.%2B%5C%7D%29%2FsU'
          2        SEND_VAL                                                 '%3Cspan+id%3D%22%5C1%22%3E%3C%2Fspan%3E'
          3        SEND_VAL                                                 'Qwe+%7Btest%7D%2C+%7Btestie%7D%2C+%7Bnot+valid%7D'
          4        DO_ICALL                                         $0      
          5        ECHO                                                     $0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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