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<?php $value ='777d:50'; $reg='/^([01]?[0-9]|2[0-3]):[0-5][0-9]$/'; if(preg_match($reg, $value)) { echo 'match'; } else { echo 'does not match'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qB5PF
function name:  (null)
number of ops:  11
compiled vars:  !0 = $value, !1 = $reg
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '777d%3A50'
    5     1        ASSIGN                                                   !1, '%2F%5E%28%5B01%5D%3F%5B0-9%5D%7C2%5B0-3%5D%29%3A%5B0-5%5D%5B0-9%5D%24%2F'
    7     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !1
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $4      
          6      > JMPZ                                                     $4, ->9
    9     7    >   ECHO                                                     'match'
          8      > JMP                                                      ->10
   13     9    >   ECHO                                                     'does+not+match'
   15    10    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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162.5 ms | 1394 KiB | 15 Q