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<?php $dt = new DateTimeImmutable('-2 hours'); $newDt = $dt->modify('+2 hours'); var_dump($dt->format('U')); var_dump($newDt->format('U')); var_dump($dt === $newDt);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CQM2Y
function name:  (null)
number of ops:  25
compiled vars:  !0 = $dt, !1 = $newDt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'DateTimeImmutable'
          1        SEND_VAL_EX                                              '-2+hours'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    4     4        INIT_METHOD_CALL                                         !0, 'modify'
          5        SEND_VAL_EX                                              '%2B2+hours'
          6        DO_FCALL                                      0  $5      
          7        ASSIGN                                                   !1, $5
    6     8        INIT_FCALL                                               'var_dump'
          9        INIT_METHOD_CALL                                         !0, 'format'
         10        SEND_VAL_EX                                              'U'
         11        DO_FCALL                                      0  $7      
         12        SEND_VAR                                                 $7
         13        DO_ICALL                                                 
    7    14        INIT_FCALL                                               'var_dump'
         15        INIT_METHOD_CALL                                         !1, 'format'
         16        SEND_VAL_EX                                              'U'
         17        DO_FCALL                                      0  $9      
         18        SEND_VAR                                                 $9
         19        DO_ICALL                                                 
    8    20        INIT_FCALL                                               'var_dump'
         21        IS_IDENTICAL                                     ~11     !0, !1
         22        SEND_VAL                                                 ~11
         23        DO_ICALL                                                 
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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