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<?php $var = ''; $var2 = null; $var3 = ""; echo isset($var) . "\n"; echo isset($var2). "\n"; echo isset($var3). "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hNJ9E
function name:  (null)
number of ops:  13
compiled vars:  !0 = $var, !1 = $var2, !2 = $var3
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, ''
    4     1        ASSIGN                                                   !1, null
    5     2        ASSIGN                                                   !2, ''
    7     3        ISSET_ISEMPTY_CV                                 ~6      !0
          4        CONCAT                                           ~7      ~6, '%0A'
          5        ECHO                                                     ~7
    8     6        ISSET_ISEMPTY_CV                                 ~8      !1
          7        CONCAT                                           ~9      ~8, '%0A'
          8        ECHO                                                     ~9
    9     9        ISSET_ISEMPTY_CV                                 ~10     !2
         10        CONCAT                                           ~11     ~10, '%0A'
         11        ECHO                                                     ~11
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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