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<?php echo strtotime( str_replace( '-', ' ', 'dec-21' ) . ', 2015' );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CbRcU
function name:  (null)
number of ops:  11
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'strtotime'
          1        INIT_FCALL                                               'str_replace'
          2        SEND_VAL                                                 '-'
          3        SEND_VAL                                                 '+'
          4        SEND_VAL                                                 'dec-21'
          5        DO_ICALL                                         $0      
          6        CONCAT                                           ~1      $0, '%2C+2015'
          7        SEND_VAL                                                 ~1
          8        DO_ICALL                                         $2      
          9        ECHO                                                     $2
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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