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<?php $date1 = new DateTime("1980-11-21 00:00:00"); $date2 = new DateTime("1981-11-20 00:00:00"); var_dump($date1->diff($date2,true)->format("%Y-%m-%d %H:%i:%s")); var_dump($date2->diff($date1,true)->format("%Y-%m-%d %H:%i:%s")); var_dump($date1->diff($date2,true)->format("%Y-%m-%d %H:%i:%s") == $date2->diff($date1,true)->format("%Y-%m-%d %H:%i:%s"));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/H030F
function name:  (null)
number of ops:  47
compiled vars:  !0 = $date1, !1 = $date2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '1980-11-21+00%3A00%3A00'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        NEW                                              $5      'DateTime'
          5        SEND_VAL_EX                                              '1981-11-20+00%3A00%3A00'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $5
    5     8        INIT_FCALL                                               'var_dump'
          9        INIT_METHOD_CALL                                         !0, 'diff'
         10        SEND_VAR_EX                                              !1
         11        SEND_VAL_EX                                              <true>
         12        DO_FCALL                                      0  $8      
         13        INIT_METHOD_CALL                                         $8, 'format'
         14        SEND_VAL_EX                                              '%25Y-%25m-%25d+%25H%3A%25i%3A%25s'
         15        DO_FCALL                                      0  $9      
         16        SEND_VAR                                                 $9
         17        DO_ICALL                                                 
    6    18        INIT_FCALL                                               'var_dump'
         19        INIT_METHOD_CALL                                         !1, 'diff'
         20        SEND_VAR_EX                                              !0
         21        SEND_VAL_EX                                              <true>
         22        DO_FCALL                                      0  $11     
         23        INIT_METHOD_CALL                                         $11, 'format'
         24        SEND_VAL_EX                                              '%25Y-%25m-%25d+%25H%3A%25i%3A%25s'
         25        DO_FCALL                                      0  $12     
         26        SEND_VAR                                                 $12
         27        DO_ICALL                                                 
    7    28        INIT_FCALL                                               'var_dump'
         29        INIT_METHOD_CALL                                         !0, 'diff'
         30        SEND_VAR_EX                                              !1
         31        SEND_VAL_EX                                              <true>
         32        DO_FCALL                                      0  $14     
         33        INIT_METHOD_CALL                                         $14, 'format'
         34        SEND_VAL_EX                                              '%25Y-%25m-%25d+%25H%3A%25i%3A%25s'
         35        DO_FCALL                                      0  $15     
         36        INIT_METHOD_CALL                                         !1, 'diff'
         37        SEND_VAR_EX                                              !0
         38        SEND_VAL_EX                                              <true>
         39        DO_FCALL                                      0  $16     
         40        INIT_METHOD_CALL                                         $16, 'format'
         41        SEND_VAL_EX                                              '%25Y-%25m-%25d+%25H%3A%25i%3A%25s'
         42        DO_FCALL                                      0  $17     
         43        IS_EQUAL                                         ~18     $15, $17
         44        SEND_VAL                                                 ~18
         45        DO_ICALL                                                 
         46      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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