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<?php $old = 30; if ($old >= 20){ print '年齢は20才以上です'; } ?>
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/vdNdB
function name:  (null)
number of ops:  5
compiled vars:  !0 = $old
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 30
    4     1        IS_SMALLER_OR_EQUAL                                      20, !0
          2      > JMPZ                                                     ~2, ->4
    5     3    >   ECHO                                                     '%E5%B9%B4%E9%BD%A2%E3%81%AF20%E6%89%8D%E4%BB%A5%E4%B8%8A%E3%81%A7%E3%81%99'
    7     4    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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