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<?php $zone = new \DateTimeZone( 'GMT' ); $oneOfSeptember2015 = \DateTime::createFromFormat('Y-m-d H:i:s', '2015-09-01', $zone); $oneOfSeptember2014 = \DateTime::createFromFormat('Y-m-d H:i:s', '2014-09-01', $zone); $diff = $now->diff( $oneOfSeptember2015, TRUE ); $dayOfDifference = $diff->format( '%d' ); var_dump( $dayOfDifference );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/BVdfv
function name:  (null)
number of ops:  29
compiled vars:  !0 = $zone, !1 = $oneOfSeptember2015, !2 = $oneOfSeptember2014, !3 = $diff, !4 = $now, !5 = $dayOfDifference
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $6      'DateTimeZone'
          1        SEND_VAL_EX                                              'GMT'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $6
    4     4        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
          5        SEND_VAL                                                 'Y-m-d+H%3Ai%3As'
          6        SEND_VAL                                                 '2015-09-01'
          7        SEND_VAR                                                 !0
          8        DO_FCALL                                      0  $9      
          9        ASSIGN                                                   !1, $9
    5    10        INIT_STATIC_METHOD_CALL                                  'DateTime', 'createFromFormat'
         11        SEND_VAL                                                 'Y-m-d+H%3Ai%3As'
         12        SEND_VAL                                                 '2014-09-01'
         13        SEND_VAR                                                 !0
         14        DO_FCALL                                      0  $11     
         15        ASSIGN                                                   !2, $11
    7    16        INIT_METHOD_CALL                                         !4, 'diff'
         17        SEND_VAR_EX                                              !1
         18        SEND_VAL_EX                                              <true>
         19        DO_FCALL                                      0  $13     
         20        ASSIGN                                                   !3, $13
    9    21        INIT_METHOD_CALL                                         !3, 'format'
         22        SEND_VAL_EX                                              '%25d'
         23        DO_FCALL                                      0  $15     
         24        ASSIGN                                                   !5, $15
   11    25        INIT_FCALL                                               'var_dump'
         26        SEND_VAR                                                 !5
         27        DO_ICALL                                                 
         28      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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