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<?php echo preg_match('/[0-9]{1,2}\. [\-\–] [0-9]{1,2}\. [a-zA-Zä]{3,}/', '16. – 21. März', $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/82XPs
function name:  (null)
number of ops:  7
compiled vars:  !0 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5B0-9%5D%7B1%2C2%7D%5C.+%5B%5C-%5C%E2%80%93%5D+%5B0-9%5D%7B1%2C2%7D%5C.+%5Ba-zA-Z%C3%A4%5D%7B3%2C%7D%2F'
          2        SEND_VAL                                                 '16.+%E2%80%93+21.+M%C3%A4rz'
          3        SEND_REF                                                 !0
          4        DO_ICALL                                         $1      
          5        ECHO                                                     $1
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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