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

Generated using Vulcan Logic Dumper, using php 8.0.0


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