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

Generated using Vulcan Logic Dumper, using php 8.0.0


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