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<?php echo strtotime(str_replace('.', '-', "2014.10.09")) . "\n\r"; echo strtotime('6 month ago') . "\n\r"; echo strtotime('3 years ago') . "\n\r"; echo str_replace('.', '-', "2014.10.09") . "\n\r";
based on iseB0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BVWtT
function name:  (null)
number of ops:  28
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'strtotime'
         1        INIT_FCALL                                               'str_replace'
         2        SEND_VAL                                                 '.'
         3        SEND_VAL                                                 '-'
         4        SEND_VAL                                                 '2014.10.09'
         5        DO_ICALL                                         $0      
         6        SEND_VAR                                                 $0
         7        DO_ICALL                                         $1      
         8        CONCAT                                           ~2      $1, '%0A%0D'
         9        ECHO                                                     ~2
   3    10        INIT_FCALL                                               'strtotime'
        11        SEND_VAL                                                 '6+month+ago'
        12        DO_ICALL                                         $3      
        13        CONCAT                                           ~4      $3, '%0A%0D'
        14        ECHO                                                     ~4
   5    15        INIT_FCALL                                               'strtotime'
        16        SEND_VAL                                                 '3+years+ago'
        17        DO_ICALL                                         $5      
        18        CONCAT                                           ~6      $5, '%0A%0D'
        19        ECHO                                                     ~6
   7    20        INIT_FCALL                                               'str_replace'
        21        SEND_VAL                                                 '.'
        22        SEND_VAL                                                 '-'
        23        SEND_VAL                                                 '2014.10.09'
        24        DO_ICALL                                         $7      
        25        CONCAT                                           ~8      $7, '%0A%0D'
        26        ECHO                                                     ~8
        27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0