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<?php var_dump(json_decode('{"123": "bar"}', true)["123"]); var_dump(json_decode('{"123": "bar"}', false)->{123});
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YPXdh
function name:  (null)
number of ops:  17
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                                                 '%7B%22123%22%3A+%22bar%22%7D'
          3        SEND_VAL                                                 <true>
          4        DO_ICALL                                         $0      
          5        FETCH_DIM_R                                      ~1      $0, 123
          6        SEND_VAL                                                 ~1
          7        DO_ICALL                                                 
    4     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'json_decode'
         10        SEND_VAL                                                 '%7B%22123%22%3A+%22bar%22%7D'
         11        SEND_VAL                                                 <false>
         12        DO_ICALL                                         $3      
         13        FETCH_OBJ_R                                      ~4      $3, '123'
         14        SEND_VAL                                                 ~4
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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