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<?php $datetime = new DateTime('2015-03-31'); var_dump($datetime); $interval = DateInterval::createFromDateString('1 month'); echo $interval->format('%d days'); $datetime->sub($interval); var_dump($datetime);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8irpT
function name:  (null)
number of ops:  22
compiled vars:  !0 = $datetime, !1 = $interval
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'DateTime'
          1        SEND_VAL_EX                                              '2015-03-31'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        INIT_FCALL                                               'var_dump'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                                 
    5     7        INIT_STATIC_METHOD_CALL                                  'DateInterval', 'createFromDateString'
          8        SEND_VAL                                                 '1+month'
          9        DO_FCALL                                      0  $6      
         10        ASSIGN                                                   !1, $6
    6    11        INIT_METHOD_CALL                                         !1, 'format'
         12        SEND_VAL_EX                                              '%25d+days'
         13        DO_FCALL                                      0  $8      
         14        ECHO                                                     $8
    8    15        INIT_METHOD_CALL                                         !0, 'sub'
         16        SEND_VAR_EX                                              !1
         17        DO_FCALL                                      0          
    9    18        INIT_FCALL                                               'var_dump'
         19        SEND_VAR                                                 !0
         20        DO_ICALL                                                 
         21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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