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<?php /* @link https://stackoverflow.com/a/79573960/367456 */ $xxx = null; echo '$xxx: '; var_dump($xxx); # echoes: $xxx: NULL echo gettype($xxx), ': ', var_export($xxx, true), "\n"; # echoes: NULL: NULL echo get_debug_type($xxx), "\n"; # echoes: null $xxx = false; echo '$xxx: '; var_dump($xxx); # echoes: $xxx: bool(false) echo gettype($xxx), ': ', var_export($xxx, true), "\n"; # echoes: boolean: false echo get_debug_type($xxx), "\n"; # echoes: bool $xxx = ''; echo '$xxx: '; var_dump($xxx); # echoes: $xxx: string(0) "" echo gettype($xxx), ': ', var_export($xxx, true), "\n"; # echoes: string: '' echo get_debug_type($xxx), "\n"; # echoes: string
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/1MoSD
function name:  (null)
number of ops:  58
compiled vars:  !0 = $xxx
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   ASSIGN                                                   !0, null
    6     1        ECHO                                                     '%24xxx%3A+'
          2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
    8     5        GET_TYPE                                         ~3      !0
          6        ECHO                                                     ~3
          7        ECHO                                                     '%3A+'
          8        INIT_FCALL                                               'var_export'
          9        SEND_VAR                                                 !0
         10        SEND_VAL                                                 <true>
         11        DO_ICALL                                         $4      
         12        ECHO                                                     $4
         13        ECHO                                                     '%0A'
   10    14        INIT_FCALL                                               'get_debug_type'
         15        SEND_VAR                                                 !0
         16        DO_ICALL                                         $5      
         17        ECHO                                                     $5
         18        ECHO                                                     '%0A'
   13    19        ASSIGN                                                   !0, <false>
   14    20        ECHO                                                     '%24xxx%3A+'
         21        INIT_FCALL                                               'var_dump'
         22        SEND_VAR                                                 !0
         23        DO_ICALL                                                 
   16    24        GET_TYPE                                         ~8      !0
         25        ECHO                                                     ~8
         26        ECHO                                                     '%3A+'
         27        INIT_FCALL                                               'var_export'
         28        SEND_VAR                                                 !0
         29        SEND_VAL                                                 <true>
         30        DO_ICALL                                         $9      
         31        ECHO                                                     $9
         32        ECHO                                                     '%0A'
   18    33        INIT_FCALL                                               'get_debug_type'
         34        SEND_VAR                                                 !0
         35        DO_ICALL                                         $10     
         36        ECHO                                                     $10
         37        ECHO                                                     '%0A'
   21    38        ASSIGN                                                   !0, ''
   22    39        ECHO                                                     '%24xxx%3A+'
         40        INIT_FCALL                                               'var_dump'
         41        SEND_VAR                                                 !0
         42        DO_ICALL                                                 
   24    43        GET_TYPE                                         ~13     !0
         44        ECHO                                                     ~13
         45        ECHO                                                     '%3A+'
         46        INIT_FCALL                                               'var_export'
         47        SEND_VAR                                                 !0
         48        SEND_VAL                                                 <true>
         49        DO_ICALL                                         $14     
         50        ECHO                                                     $14
         51        ECHO                                                     '%0A'
   26    52        INIT_FCALL                                               'get_debug_type'
         53        SEND_VAR                                                 !0
         54        DO_ICALL                                         $15     
         55        ECHO                                                     $15
         56        ECHO                                                     '%0A'
   27    57      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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