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<?php $tz = new DateTimeZone('America/Los_Angeles'); $now = new DateTime('03 Nov 2014', $tz); $twoDaysAgo1 = $now->sub(new DateInterval('P2D')); $twoDaysAgo2 = $now->sub(new DateInterval('PT172800S')); $twoDaysAgo3 = new DateTime('@' . ($now->getTimestamp() - 172800)); var_dump($twoDaysAgo1->getTimestamp()); var_dump($twoDaysAgo2->getTimestamp()); var_dump($twoDaysAgo3->getTimestamp());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6Op0H
function name:  (null)
number of ops:  47
compiled vars:  !0 = $tz, !1 = $now, !2 = $twoDaysAgo1, !3 = $twoDaysAgo2, !4 = $twoDaysAgo3
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $5      'DateTimeZone'
          1        SEND_VAL_EX                                              'America%2FLos_Angeles'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $5
    3     4        NEW                                              $8      'DateTime'
          5        SEND_VAL_EX                                              '03+Nov+2014'
          6        SEND_VAR_EX                                              !0
          7        DO_FCALL                                      0          
          8        ASSIGN                                                   !1, $8
    4     9        INIT_METHOD_CALL                                         !1, 'sub'
         10        NEW                                              $11     'DateInterval'
         11        SEND_VAL_EX                                              'P2D'
         12        DO_FCALL                                      0          
         13        SEND_VAR_NO_REF_EX                                       $11
         14        DO_FCALL                                      0  $13     
         15        ASSIGN                                                   !2, $13
    5    16        INIT_METHOD_CALL                                         !1, 'sub'
         17        NEW                                              $15     'DateInterval'
         18        SEND_VAL_EX                                              'PT172800S'
         19        DO_FCALL                                      0          
         20        SEND_VAR_NO_REF_EX                                       $15
         21        DO_FCALL                                      0  $17     
         22        ASSIGN                                                   !3, $17
    6    23        NEW                                              $19     'DateTime'
         24        INIT_METHOD_CALL                                         !1, 'getTimestamp'
         25        DO_FCALL                                      0  $20     
         26        SUB                                              ~21     $20, 172800
         27        CONCAT                                           ~22     '%40', ~21
         28        SEND_VAL_EX                                              ~22
         29        DO_FCALL                                      0          
         30        ASSIGN                                                   !4, $19
    8    31        INIT_FCALL                                               'var_dump'
         32        INIT_METHOD_CALL                                         !2, 'getTimestamp'
         33        DO_FCALL                                      0  $25     
         34        SEND_VAR                                                 $25
         35        DO_ICALL                                                 
    9    36        INIT_FCALL                                               'var_dump'
         37        INIT_METHOD_CALL                                         !3, 'getTimestamp'
         38        DO_FCALL                                      0  $27     
         39        SEND_VAR                                                 $27
         40        DO_ICALL                                                 
   10    41        INIT_FCALL                                               'var_dump'
         42        INIT_METHOD_CALL                                         !4, 'getTimestamp'
         43        DO_FCALL                                      0  $29     
         44        SEND_VAR                                                 $29
         45        DO_ICALL                                                 
         46      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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