3v4l.org

run code in 300+ PHP versions simultaneously
<?php $userTimezone = new \DateTimeZone('Europe/Helsinki'); $time_start = new DateTime('2014-10-02', $userTimezone); echo $time_start->format('r') . "\n"; $time_start->modify('first day of this month'); echo $time_start->format('r') . "\n"; $time_start->setTimezone( new \DateTimeZone( 'UTC' ) ); $time_start->getTimestamp(); echo $time_start->format('r') . "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HhZuG
function name:  (null)
number of ops:  36
compiled vars:  !0 = $userTimezone, !1 = $time_start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'DateTimeZone'
          1        SEND_VAL_EX                                              'Europe%2FHelsinki'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        NEW                                              $5      'DateTime'
          5        SEND_VAL_EX                                              '2014-10-02'
          6        SEND_VAR_EX                                              !0
          7        DO_FCALL                                      0          
          8        ASSIGN                                                   !1, $5
    4     9        INIT_METHOD_CALL                                         !1, 'format'
         10        SEND_VAL_EX                                              'r'
         11        DO_FCALL                                      0  $8      
         12        CONCAT                                           ~9      $8, '%0A'
         13        ECHO                                                     ~9
    5    14        INIT_METHOD_CALL                                         !1, 'modify'
         15        SEND_VAL_EX                                              'first+day+of+this+month'
         16        DO_FCALL                                      0          
    6    17        INIT_METHOD_CALL                                         !1, 'format'
         18        SEND_VAL_EX                                              'r'
         19        DO_FCALL                                      0  $11     
         20        CONCAT                                           ~12     $11, '%0A'
         21        ECHO                                                     ~12
    7    22        INIT_METHOD_CALL                                         !1, 'setTimezone'
         23        NEW                                              $13     'DateTimeZone'
         24        SEND_VAL_EX                                              'UTC'
         25        DO_FCALL                                      0          
         26        SEND_VAR_NO_REF_EX                                       $13
         27        DO_FCALL                                      0          
    8    28        INIT_METHOD_CALL                                         !1, 'getTimestamp'
         29        DO_FCALL                                      0          
    9    30        INIT_METHOD_CALL                                         !1, 'format'
         31        SEND_VAL_EX                                              'r'
         32        DO_FCALL                                      0  $17     
         33        CONCAT                                           ~18     $17, '%0A'
         34        ECHO                                                     ~18
         35      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.41 ms | 1395 KiB | 13 Q