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<?php $i = 'PT7H'; $d = '2016-07-07 10:20:00'; $dt = new DateTime($d); echo $dt->sub(new DateInterval($i))->getTime();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KnuFn
function name:  (null)
number of ops:  16
compiled vars:  !0 = $i, !1 = $d, !2 = $dt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'PT7H'
    4     1        ASSIGN                                                   !1, '2016-07-07+10%3A20%3A00'
    5     2        NEW                                              $5      'DateTime'
          3        SEND_VAR_EX                                              !1
          4        DO_FCALL                                      0          
          5        ASSIGN                                                   !2, $5
    6     6        INIT_METHOD_CALL                                         !2, 'sub'
          7        NEW                                              $8      'DateInterval'
          8        SEND_VAR_EX                                              !0
          9        DO_FCALL                                      0          
         10        SEND_VAR_NO_REF_EX                                       $8
         11        DO_FCALL                                      0  $10     
         12        INIT_METHOD_CALL                                         $10, 'getTime'
         13        DO_FCALL                                      0  $11     
         14        ECHO                                                     $11
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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