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<?php $baz = new StdClass; $baz->{"1"} = true; $baz->{"2"} = true; var_export((array)$baz); echo "\n"; var_export(key_exists((string)'1', $baz)); echo "\n"; $foo = (array)$baz; echo $foo["1"];
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/pJ8IO
function name:  (null)
number of ops:  26
compiled vars:  !0 = $baz, !1 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   NEW                                              $2      'StdClass'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
    4     3        ASSIGN_OBJ                                               !0, '1'
          4        OP_DATA                                                  <true>
    5     5        ASSIGN_OBJ                                               !0, '2'
          6        OP_DATA                                                  <true>
    6     7        INIT_FCALL                                               'var_export'
          8        CAST                                          7  ~7      !0
          9        SEND_VAL                                                 ~7
         10        DO_ICALL                                                 
    7    11        ECHO                                                     '%0A'
    8    12        INIT_FCALL                                               'var_export'
         13        INIT_FCALL                                               'key_exists'
         14        CAST                                          6  ~9      '1'
         15        SEND_VAL                                                 ~9
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                         $10     
         18        SEND_VAR                                                 $10
         19        DO_ICALL                                                 
    9    20        ECHO                                                     '%0A'
   10    21        CAST                                          7  ~12     !0
         22        ASSIGN                                                   !1, ~12
   11    23        FETCH_DIM_R                                      ~14     !1, 1
         24        ECHO                                                     ~14
         25      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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