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<?php $date = '2020-11-27 12:33:00'; var_dump(date('Y-m-d H:i:s', strtotime($date.' +1 day'))); // Correct: 2020-11-28 12:33:00 var_dump(date('Y-m-d H:i:s', strtotime($date.' +1 Weekday'))); // Uncorrect, lost time: 2020-11-30 00:00:00 $date1 = new DateTime($date); $date2 = new DateTime($date); $date2->modify('+1 day'); var_dump($date2->format('Y-m-d H:i:s')); // Correct: 2020-11-28 12:33:00 $date1->modify('+1 weekday'); var_dump($date1->format('Y-m-d H:i:s')); // Uncorrect, lost time: 2020-11-30 00:00:00
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/m0UbY
function name:  (null)
number of ops:  50
compiled vars:  !0 = $date, !1 = $date1, !2 = $date2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '2020-11-27+12%3A33%3A00'
    5     1        INIT_FCALL                                                   'var_dump'
          2        INIT_FCALL                                                   'date'
          3        SEND_VAL                                                     'Y-m-d+H%3Ai%3As'
          4        INIT_FCALL                                                   'strtotime'
          5        CONCAT                                               ~4      !0, '+%2B1+day'
          6        SEND_VAL                                                     ~4
          7        DO_ICALL                                             $5      
          8        SEND_VAR                                                     $5
          9        DO_ICALL                                             $6      
         10        SEND_VAR                                                     $6
         11        DO_ICALL                                                     
    7    12        INIT_FCALL                                                   'var_dump'
         13        INIT_FCALL                                                   'date'
         14        SEND_VAL                                                     'Y-m-d+H%3Ai%3As'
         15        INIT_FCALL                                                   'strtotime'
         16        CONCAT                                               ~8      !0, '+%2B1+Weekday'
         17        SEND_VAL                                                     ~8
         18        DO_ICALL                                             $9      
         19        SEND_VAR                                                     $9
         20        DO_ICALL                                             $10     
         21        SEND_VAR                                                     $10
         22        DO_ICALL                                                     
   10    23        NEW                                                  $12     'DateTime'
         24        SEND_VAR_EX                                                  !0
         25        DO_FCALL                                          0          
         26        ASSIGN                                                       !1, $12
   11    27        NEW                                                  $15     'DateTime'
         28        SEND_VAR_EX                                                  !0
         29        DO_FCALL                                          0          
         30        ASSIGN                                                       !2, $15
   13    31        INIT_METHOD_CALL                                             !2, 'modify'
         32        SEND_VAL_EX                                                  '%2B1+day'
         33        DO_FCALL                                          0          
   14    34        INIT_FCALL                                                   'var_dump'
         35        INIT_METHOD_CALL                                             !2, 'format'
         36        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         37        DO_FCALL                                          0  $19     
         38        SEND_VAR                                                     $19
         39        DO_ICALL                                                     
   16    40        INIT_METHOD_CALL                                             !1, 'modify'
         41        SEND_VAL_EX                                                  '%2B1+weekday'
         42        DO_FCALL                                          0          
   17    43        INIT_FCALL                                                   'var_dump'
         44        INIT_METHOD_CALL                                             !1, 'format'
         45        SEND_VAL_EX                                                  'Y-m-d+H%3Ai%3As'
         46        DO_FCALL                                          0  $22     
         47        SEND_VAR                                                     $22
         48        DO_ICALL                                                     
   18    49      > RETURN                                                       1

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