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<?php $tz = new DateTimeZone('Europe/Brussels'); $date = new DateTime('2014-10-26T02:00:00', $tz); $interval = new DateInterval('PT1H30M'); echo $date->format('c') . PHP_EOL; echo $date->sub($interval)->format('c') . PHP_EOL; echo $date->sub($interval)->format('c') . PHP_EOL; echo $date->sub($interval)->format('c') . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dM7s4
function name:  (null)
number of ops:  43
compiled vars:  !0 = $tz, !1 = $date, !2 = $interval
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $3      'DateTimeZone'
          1        SEND_VAL_EX                                              'Europe%2FBrussels'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $3
    3     4        NEW                                              $6      'DateTime'
          5        SEND_VAL_EX                                              '2014-10-26T02%3A00%3A00'
          6        SEND_VAR_EX                                              !0
          7        DO_FCALL                                      0          
          8        ASSIGN                                                   !1, $6
    4     9        NEW                                              $9      'DateInterval'
         10        SEND_VAL_EX                                              'PT1H30M'
         11        DO_FCALL                                      0          
         12        ASSIGN                                                   !2, $9
    6    13        INIT_METHOD_CALL                                         !1, 'format'
         14        SEND_VAL_EX                                              'c'
         15        DO_FCALL                                      0  $12     
         16        CONCAT                                           ~13     $12, '%0A'
         17        ECHO                                                     ~13
    7    18        INIT_METHOD_CALL                                         !1, 'sub'
         19        SEND_VAR_EX                                              !2
         20        DO_FCALL                                      0  $14     
         21        INIT_METHOD_CALL                                         $14, 'format'
         22        SEND_VAL_EX                                              'c'
         23        DO_FCALL                                      0  $15     
         24        CONCAT                                           ~16     $15, '%0A'
         25        ECHO                                                     ~16
    8    26        INIT_METHOD_CALL                                         !1, 'sub'
         27        SEND_VAR_EX                                              !2
         28        DO_FCALL                                      0  $17     
         29        INIT_METHOD_CALL                                         $17, 'format'
         30        SEND_VAL_EX                                              'c'
         31        DO_FCALL                                      0  $18     
         32        CONCAT                                           ~19     $18, '%0A'
         33        ECHO                                                     ~19
    9    34        INIT_METHOD_CALL                                         !1, 'sub'
         35        SEND_VAR_EX                                              !2
         36        DO_FCALL                                      0  $20     
         37        INIT_METHOD_CALL                                         $20, 'format'
         38        SEND_VAL_EX                                              'c'
         39        DO_FCALL                                      0  $21     
         40        CONCAT                                           ~22     $21, '%0A'
         41        ECHO                                                     ~22
         42      > RETURN                                                   1

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