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<?php $datetime = new DateTime(null, new DateTimeZone('UTC')); $datetime_2 = clone $datetime; $datetime_2->add(new DateInterval('PT2S')); var_dump($datetime < $datetime_2); var_dump($datetime->getTimestamp() < $datetime_2->getTimestamp()); $datetime_2->setTimezone(new DateTimeZone('EST')); var_dump($datetime < $datetime_2); var_dump($datetime->getTimestamp() < $datetime_2->getTimestamp()); // Now that `getTimestamp()` has been called, it'll "magically" work... var_dump($datetime < $datetime_2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WkjAA
function name:  (null)
number of ops:  51
compiled vars:  !0 = $datetime, !1 = $datetime_2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   NEW                                                  $2      'DateTime'
          1        SEND_VAL_EX                                                  null
          2        NEW                                                  $3      'DateTimeZone'
          3        SEND_VAL_EX                                                  'UTC'
          4        DO_FCALL                                          0          
          5        SEND_VAR_NO_REF_EX                                           $3
          6        DO_FCALL                                          0          
          7        ASSIGN                                                       !0, $2
    4     8        CLONE                                                ~7      !0
          9        ASSIGN                                                       !1, ~7
    5    10        INIT_METHOD_CALL                                             !1, 'add'
         11        NEW                                                  $9      'DateInterval'
         12        SEND_VAL_EX                                                  'PT2S'
         13        DO_FCALL                                          0          
         14        SEND_VAR_NO_REF_EX                                           $9
         15        DO_FCALL                                          0          
    7    16        INIT_FCALL                                                   'var_dump'
         17        IS_SMALLER                                           ~12     !0, !1
         18        SEND_VAL                                                     ~12
         19        DO_ICALL                                                     
    8    20        INIT_FCALL                                                   'var_dump'
         21        INIT_METHOD_CALL                                             !0, 'getTimestamp'
         22        DO_FCALL                                          0  $14     
         23        INIT_METHOD_CALL                                             !1, 'getTimestamp'
         24        DO_FCALL                                          0  $15     
         25        IS_SMALLER                                           ~16     $14, $15
         26        SEND_VAL                                                     ~16
         27        DO_ICALL                                                     
   10    28        INIT_METHOD_CALL                                             !1, 'setTimezone'
         29        NEW                                                  $18     'DateTimeZone'
         30        SEND_VAL_EX                                                  'EST'
         31        DO_FCALL                                          0          
         32        SEND_VAR_NO_REF_EX                                           $18
         33        DO_FCALL                                          0          
   12    34        INIT_FCALL                                                   'var_dump'
         35        IS_SMALLER                                           ~21     !0, !1
         36        SEND_VAL                                                     ~21
         37        DO_ICALL                                                     
   13    38        INIT_FCALL                                                   'var_dump'
         39        INIT_METHOD_CALL                                             !0, 'getTimestamp'
         40        DO_FCALL                                          0  $23     
         41        INIT_METHOD_CALL                                             !1, 'getTimestamp'
         42        DO_FCALL                                          0  $24     
         43        IS_SMALLER                                           ~25     $23, $24
         44        SEND_VAL                                                     ~25
         45        DO_ICALL                                                     
   16    46        INIT_FCALL                                                   'var_dump'
         47        IS_SMALLER                                           ~27     !0, !1
         48        SEND_VAL                                                     ~27
         49        DO_ICALL                                                     
         50      > RETURN                                                       1

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