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<?php $obj = new DateTimeImmutable('2021-03-18 14:38:45.008455'); $time = (float) $obj->format('U.u'); $recreated = DateTimeImmutable::createFromFormat('U.u', (string) $time); var_dump($obj, $recreated, $recreated == $obj); $time = json_decode($obj->format('U.u')); $recreated = DateTimeImmutable::createFromFormat('U.u', (string) $time); var_dump($obj, $recreated, $recreated == $obj);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/NCNT7
function name:  (null)
number of ops:  41
compiled vars:  !0 = $obj, !1 = $time, !2 = $recreated
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $3      'DateTimeImmutable'
          1        SEND_VAL_EX                                              '2021-03-18+14%3A38%3A45.008455'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    4     4        INIT_METHOD_CALL                                         !0, 'format'
          5        SEND_VAL_EX                                              'U.u'
          6        DO_FCALL                                      0  $6      
          7        CAST                                          5  ~7      $6
          8        ASSIGN                                                   !1, ~7
    6     9        INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
         10        SEND_VAL                                                 'U.u'
         11        CAST                                          6  ~9      !1
         12        SEND_VAL                                                 ~9
         13        DO_FCALL                                      0  $10     
         14        ASSIGN                                                   !2, $10
    8    15        INIT_FCALL                                               'var_dump'
         16        SEND_VAR                                                 !0
         17        SEND_VAR                                                 !2
         18        IS_EQUAL                                         ~12     !2, !0
         19        SEND_VAL                                                 ~12
         20        DO_ICALL                                                 
   10    21        INIT_FCALL                                               'json_decode'
         22        INIT_METHOD_CALL                                         !0, 'format'
         23        SEND_VAL_EX                                              'U.u'
         24        DO_FCALL                                      0  $14     
         25        SEND_VAR                                                 $14
         26        DO_ICALL                                         $15     
         27        ASSIGN                                                   !1, $15
   12    28        INIT_STATIC_METHOD_CALL                                  'DateTimeImmutable', 'createFromFormat'
         29        SEND_VAL                                                 'U.u'
         30        CAST                                          6  ~17     !1
         31        SEND_VAL                                                 ~17
         32        DO_FCALL                                      0  $18     
         33        ASSIGN                                                   !2, $18
   14    34        INIT_FCALL                                               'var_dump'
         35        SEND_VAR                                                 !0
         36        SEND_VAR                                                 !2
         37        IS_EQUAL                                         ~20     !2, !0
         38        SEND_VAL                                                 ~20
         39        DO_ICALL                                                 
         40      > RETURN                                                   1

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