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<?php var_dump(null); // null var_dump(NULL); // null define("NULL","hello world"); var_dump(null); // null var_dump(NULL); // hello world define("null","hello world"); //Notice: Constant null already defined
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Lp400
function name:  (null)
number of ops:  21
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'var_dump'
          1        SEND_VAL                                                     null
          2        DO_ICALL                                                     
    4     3        INIT_FCALL                                                   'var_dump'
          4        SEND_VAL                                                     null
          5        DO_ICALL                                                     
    5     6        INIT_FCALL                                                   'define'
          7        SEND_VAL                                                     'NULL'
          8        SEND_VAL                                                     'hello+world'
          9        DO_ICALL                                                     
    6    10        INIT_FCALL                                                   'var_dump'
         11        SEND_VAL                                                     null
         12        DO_ICALL                                                     
    7    13        INIT_FCALL                                                   'var_dump'
         14        SEND_VAL                                                     null
         15        DO_ICALL                                                     
    8    16        INIT_FCALL                                                   'define'
         17        SEND_VAL                                                     'null'
         18        SEND_VAL                                                     'hello+world'
         19        DO_ICALL                                                     
         20      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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