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<?php $string = '2018-01-11T15:36:16.000+01:00'; $date = new DateTime($string); $datetime = new DateTimeImmutable($string); $otherString = $date->format(DateTime::RFC3339_EXTENDED); $immutableString = $datetime->format(DateTime::RFC3339_EXTENDED); var_dump( $string == $otherString, $string == $immutableString, DateTimeImmutable::getLastErrors() );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jFOkA
function name:  (null)
number of ops:  27
compiled vars:  !0 = $string, !1 = $date, !2 = $datetime, !3 = $otherString, !4 = $immutableString
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '2018-01-11T15%3A36%3A16.000%2B01%3A00'
    5     1        NEW                                                  $6      'DateTime'
          2        SEND_VAR_EX                                                  !0
          3        DO_FCALL                                          0          
          4        ASSIGN                                                       !1, $6
    6     5        NEW                                                  $9      'DateTimeImmutable'
          6        SEND_VAR_EX                                                  !0
          7        DO_FCALL                                          0          
          8        ASSIGN                                                       !2, $9
    8     9        INIT_METHOD_CALL                                             !1, 'format'
         10        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3As.vP'
         11        DO_FCALL                                          0  $12     
         12        ASSIGN                                                       !3, $12
    9    13        INIT_METHOD_CALL                                             !2, 'format'
         14        SEND_VAL_EX                                                  'Y-m-d%5CTH%3Ai%3As.vP'
         15        DO_FCALL                                          0  $14     
         16        ASSIGN                                                       !4, $14
   11    17        INIT_FCALL                                                   'var_dump'
   12    18        IS_EQUAL                                             ~16     !0, !3
         19        SEND_VAL                                                     ~16
   13    20        IS_EQUAL                                             ~17     !0, !4
         21        SEND_VAL                                                     ~17
   14    22        INIT_STATIC_METHOD_CALL                                      'DateTimeImmutable', 'getLastErrors'
         23        DO_FCALL                                          0  $18     
         24        SEND_VAR                                                     $18
   11    25        DO_ICALL                                                     
   15    26      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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