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<?php $json = '{"100308":1}'; $temp = json_decode($json); $sub = get_object_vars($temp); // Error Array var_dump($sub, array_key_exists('100308', $sub));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vZbPc
function name:  (null)
number of ops:  15
compiled vars:  !0 = $json, !1 = $temp, !2 = $sub
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%7B%22100308%22%3A1%7D'
    4     1        INIT_FCALL                                               'json_decode'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $4      
          4        ASSIGN                                                   !1, $4
    5     5        INIT_FCALL                                               'get_object_vars'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                         $6      
          8        ASSIGN                                                   !2, $6
    6     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !2
         11        ARRAY_KEY_EXISTS                                 ~8      '100308', !2
         12        SEND_VAL                                                 ~8
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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