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<?php if(empty($myvar)){ if(isset($myvar)) echo $myvar; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 2, Position 2 = 5
Branch analysis from position: 2
2 jumps found. (Code = 43) Position 1 = 4, Position 2 = 5
Branch analysis from position: 4
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
Branch analysis from position: 5
filename:       /in/O4ole
function name:  (null)
number of ops:  6
compiled vars:  !0 = $myvar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ISSET_ISEMPTY_CV                                         !0
          1      > JMPZ                                                     ~1, ->5
    4     2    >   ISSET_ISEMPTY_CV                                         !0
          3      > JMPZ                                                     ~2, ->5
    5     4    >   ECHO                                                     !0
    6     5    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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