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<?php $str = "12.03 10:00-11:00 Елка, Земфира"; $res = preg_match('/^(\d\d)[.](\d\d)[ ]+(\d\d\:\d\d)-(\d\d\:\d\d)[ ]+(.+)$/is', $str, $matches); var_dump($res, $matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NP93Z
function name:  (null)
number of ops:  12
compiled vars:  !0 = $str, !1 = $res, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '12.03+10%3A00-11%3A00+%D0%95%D0%BB%D0%BA%D0%B0%2C+%D0%97%D0%B5%D0%BC%D1%84%D0%B8%D1%80%D0%B0'
    3     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5E%28%5Cd%5Cd%29%5B.%5D%28%5Cd%5Cd%29%5B+%5D%2B%28%5Cd%5Cd%5C%3A%5Cd%5Cd%29-%28%5Cd%5Cd%5C%3A%5Cd%5Cd%29%5B+%5D%2B%28.%2B%29%24%2Fis'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !2
          5        DO_ICALL                                         $4      
          6        ASSIGN                                                   !1, $4
    4     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !1
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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