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<?php $i1 = new DateInterval('PT1H'); $i2 = new DateInterval('PT2H'); var_dump($i1 > $i2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IBqIg
function name:  (null)
number of ops:  13
compiled vars:  !0 = $i1, !1 = $i2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'DateInterval'
          1        SEND_VAL_EX                                              'PT1H'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        NEW                                              $5      'DateInterval'
          5        SEND_VAL_EX                                              'PT2H'
          6        DO_FCALL                                      0          
          7        ASSIGN                                                   !1, $5
    5     8        INIT_FCALL                                               'var_dump'
          9        IS_SMALLER                                       ~8      !1, !0
         10        SEND_VAL                                                 ~8
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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