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<?php $now = new DateTime('now'); $date = DateTime::createFromFormat('YmdHis', '2004' . $now->format('md') . '235959'); print($now . ':' . $date); die; $diff = $date->diff($now, true); printf( 'Got %s and expected %s', $now->sub($diff)->format(DateTime::ISO8601), $date->format(DateTime::ISO8601) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 79) Position 1 = -2
filename:       /in/0T435
function name:  (null)
number of ops:  38
compiled vars:  !0 = $now, !1 = $date, !2 = $diff
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTime'
          1        SEND_VAL_EX                                              'now'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    4     4        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          5        SEND_VAL                                                 'YmdHis'
          6        INIT_METHOD_CALL                                         !0, 'format'
          7        SEND_VAL_EX                                              'md'
          8        DO_FCALL                                      0  $6      
          9        CONCAT                                           ~7      '2004', $6
         10        CONCAT                                           ~8      ~7, '235959'
         11        SEND_VAL                                                 ~8
         12        DO_FCALL                                      0  $9      
         13        ASSIGN                                                   !1, $9
    6    14        CONCAT                                           ~11     !0, '%3A'
         15        CONCAT                                           ~12     ~11, !1
         16        ECHO                                                     ~12
    7    17      > EXIT                                                     
    9    18*       INIT_METHOD_CALL                                         !1, 'diff'
         19*       SEND_VAR_EX                                              !0
         20*       SEND_VAL_EX                                              <true>
         21*       DO_FCALL                                      0  $13     
         22*       ASSIGN                                                   !2, $13
   11    23*       INIT_FCALL                                               'printf'
   12    24*       SEND_VAL                                                 'Got+%25s+and+expected+%25s'
   13    25*       INIT_METHOD_CALL                                         !0, 'sub'
         26*       SEND_VAR_EX                                              !2
         27*       DO_FCALL                                      0  $15     
         28*       INIT_METHOD_CALL                                         $15, 'format'
         29*       SEND_VAL_EX                                              'Y-m-d%5CTH%3Ai%3AsO'
         30*       DO_FCALL                                      0  $16     
         31*       SEND_VAR                                                 $16
   14    32*       INIT_METHOD_CALL                                         !1, 'format'
         33*       SEND_VAL_EX                                              'Y-m-d%5CTH%3Ai%3AsO'
         34*       DO_FCALL                                      0  $17     
         35*       SEND_VAR                                                 $17
         36*       DO_ICALL                                                 
   15    37*     > RETURN                                                   1

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