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<?php $b = ''; echo isset($a); echo "\n\r"; echo isset($b); echo "\n\r"; echo "\n\r"; echo empty($a); echo "\n\r"; echo empty($b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PKbkB
function name:  (null)
number of ops:  14
compiled vars:  !0 = $b, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, ''
    5     1        ISSET_ISEMPTY_CV                                 ~3      !1
          2        ECHO                                                     ~3
    6     3        ECHO                                                     '%0A%0D'
    7     4        ISSET_ISEMPTY_CV                                 ~4      !0
          5        ECHO                                                     ~4
    9     6        ECHO                                                     '%0A%0D'
   10     7        ECHO                                                     '%0A%0D'
   12     8        ISSET_ISEMPTY_CV                                 ~5      !1
          9        ECHO                                                     ~5
   13    10        ECHO                                                     '%0A%0D'
   14    11        ISSET_ISEMPTY_CV                                 ~6      !0
         12        ECHO                                                     ~6
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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