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<?php var_dump(isset($var)); var_dump(empty($var)); $var = null; var_dump(isset($var)); var_dump(empty($var)); $var = false; var_dump(isset($var)); var_dump(empty($var));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/GrGS4
function name:  (null)
number of ops:  27
compiled vars:  !0 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        ISSET_ISEMPTY_CV                                 ~1      !0
          2        SEND_VAL                                                 ~1
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'var_dump'
          5        ISSET_ISEMPTY_CV                                 ~3      !0
          6        SEND_VAL                                                 ~3
          7        DO_ICALL                                                 
    6     8        ASSIGN                                                   !0, null
    7     9        INIT_FCALL                                               'var_dump'
         10        ISSET_ISEMPTY_CV                                 ~6      !0
         11        SEND_VAL                                                 ~6
         12        DO_ICALL                                                 
    8    13        INIT_FCALL                                               'var_dump'
         14        ISSET_ISEMPTY_CV                                 ~8      !0
         15        SEND_VAL                                                 ~8
         16        DO_ICALL                                                 
   10    17        ASSIGN                                                   !0, <false>
   11    18        INIT_FCALL                                               'var_dump'
         19        ISSET_ISEMPTY_CV                                 ~11     !0
         20        SEND_VAL                                                 ~11
         21        DO_ICALL                                                 
   12    22        INIT_FCALL                                               'var_dump'
         23        ISSET_ISEMPTY_CV                                 ~13     !0
         24        SEND_VAL                                                 ~13
         25        DO_ICALL                                                 
         26      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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