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<?php var_dump(json_decode('null', true)); var_dump(json_last_error()); var_dump(json_last_error() !== JSON_ERROR_NONE); var_dump(json_decode('[]', true)); var_dump(json_last_error()); var_dump(json_last_error() !== JSON_ERROR_NONE); var_dump(json_decode('{}', true)); var_dump(json_last_error()); var_dump(json_last_error() !== JSON_ERROR_NONE);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/IuuqP
function name:  (null)
number of ops:  55
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'json_decode'
          2        SEND_VAL                                                 'null'
          3        SEND_VAL                                                 <true>
          4        DO_ICALL                                         $0      
          5        SEND_VAR                                                 $0
          6        DO_ICALL                                                 
    4     7        INIT_FCALL                                               'var_dump'
          8        INIT_FCALL                                               'json_last_error'
          9        DO_ICALL                                         $2      
         10        SEND_VAR                                                 $2
         11        DO_ICALL                                                 
    5    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'json_last_error'
         14        DO_ICALL                                         $4      
         15        IS_NOT_IDENTICAL                                 ~5      $4, 0
         16        SEND_VAL                                                 ~5
         17        DO_ICALL                                                 
    6    18        INIT_FCALL                                               'var_dump'
         19        INIT_FCALL                                               'json_decode'
         20        SEND_VAL                                                 '%5B%5D'
         21        SEND_VAL                                                 <true>
         22        DO_ICALL                                         $7      
         23        SEND_VAR                                                 $7
         24        DO_ICALL                                                 
    7    25        INIT_FCALL                                               'var_dump'
         26        INIT_FCALL                                               'json_last_error'
         27        DO_ICALL                                         $9      
         28        SEND_VAR                                                 $9
         29        DO_ICALL                                                 
    8    30        INIT_FCALL                                               'var_dump'
         31        INIT_FCALL                                               'json_last_error'
         32        DO_ICALL                                         $11     
         33        IS_NOT_IDENTICAL                                 ~12     $11, 0
         34        SEND_VAL                                                 ~12
         35        DO_ICALL                                                 
    9    36        INIT_FCALL                                               'var_dump'
         37        INIT_FCALL                                               'json_decode'
         38        SEND_VAL                                                 '%7B%7D'
         39        SEND_VAL                                                 <true>
         40        DO_ICALL                                         $14     
         41        SEND_VAR                                                 $14
         42        DO_ICALL                                                 
   10    43        INIT_FCALL                                               'var_dump'
         44        INIT_FCALL                                               'json_last_error'
         45        DO_ICALL                                         $16     
         46        SEND_VAR                                                 $16
         47        DO_ICALL                                                 
   11    48        INIT_FCALL                                               'var_dump'
         49        INIT_FCALL                                               'json_last_error'
         50        DO_ICALL                                         $18     
         51        IS_NOT_IDENTICAL                                 ~19     $18, 0
         52        SEND_VAL                                                 ~19
         53        DO_ICALL                                                 
         54      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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