3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tz = new DateTimeZone('America/Chicago'); // A timezone that has DST $five_hours_interval = new DateInterval('PT5H'); $date = new DateTime("2019-11-03 00:00:00", $tz); // goes backward at 2am echo $date->format('c') . "\n"; // Add five hours and subtract 5 hours. The $newDate should then equal the date. $five_hours_later = $date->add($five_hours_interval); $newDate = $five_hours_later->sub($five_hours_interval); echo $newDate->format('c');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dfUXN
function name:  (null)
number of ops:  31
compiled vars:  !0 = $tz, !1 = $five_hours_interval, !2 = $date, !3 = $five_hours_later, !4 = $newDate
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $5      'DateTimeZone'
          1        SEND_VAL_EX                                              'America%2FChicago'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $5
    5     4        NEW                                              $8      'DateInterval'
          5        SEND_VAL_EX                                              'PT5H'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $8
    7     8        NEW                                              $11     'DateTime'
          9        SEND_VAL_EX                                              '2019-11-03+00%3A00%3A00'
         10        SEND_VAR_EX                                              !0
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !2, $11
    9    13        INIT_METHOD_CALL                                         !2, 'format'
         14        SEND_VAL_EX                                              'c'
         15        DO_FCALL                                      0  $14     
         16        CONCAT                                           ~15     $14, '%0A'
         17        ECHO                                                     ~15
   12    18        INIT_METHOD_CALL                                         !2, 'add'
         19        SEND_VAR_EX                                              !1
         20        DO_FCALL                                      0  $16     
         21        ASSIGN                                                   !3, $16
   14    22        INIT_METHOD_CALL                                         !3, 'sub'
         23        SEND_VAR_EX                                              !1
         24        DO_FCALL                                      0  $18     
         25        ASSIGN                                                   !4, $18
   16    26        INIT_METHOD_CALL                                         !4, 'format'
         27        SEND_VAL_EX                                              'c'
         28        DO_FCALL                                      0  $20     
         29        ECHO                                                     $20
         30      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
141.58 ms | 1394 KiB | 13 Q