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<?php //$s = ''; print "isset: '" . isset($s) . "'. "; print "!empty: '" . !empty($s) . "'"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/HWIqb
function name:  (null)
number of ops:  10
compiled vars:  !0 = $s
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ISSET_ISEMPTY_CV                                 ~1      !0
          1        CONCAT                                           ~2      'isset%3A+%27', ~1
          2        CONCAT                                           ~3      ~2, '%27.+'
          3        ECHO                                                     ~3
    6     4        ISSET_ISEMPTY_CV                                 ~4      !0
          5        BOOL_NOT                                         ~5      ~4
          6        CONCAT                                           ~6      '%21empty%3A+%27', ~5
          7        CONCAT                                           ~7      ~6, '%27'
          8        ECHO                                                     ~7
    8     9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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