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<?php // iconv checks if ( !function_exists( 'iconv' ) ) { echo( "JsonFallback: iconv PHP extension is missing\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\x00" ) !== "\x00\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+0000\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xc4\x80" ) !== "\x01\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+0100\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xef\xbf\xbf" ) !== "\xff\xff" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+FFFF\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xf0\x90\x80\x80" ) !== "\xd8\x00\xdc\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+10000\n" ); } if ( (string) @iconv( 'UTF-8', 'UTF-16BE', "A\xc0\x80B" ) !== '' ) { echo( "JsonFallback: iconv PHP extension failed to reject C0 80\n" ); } if ( (string) @iconv( 'UTF-8', 'UTF-16BE', "A\xf4\x90\x80\x80B" ) !== '' ) { echo( "JsonFallback: iconv PHP extension failed to reject F4 90 80 80\n" ); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 6
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 13, Position 2 = 14
Branch analysis from position: 13
2 jumps found. (Code = 43) Position 1 = 21, Position 2 = 22
Branch analysis from position: 21
2 jumps found. (Code = 43) Position 1 = 29, Position 2 = 30
Branch analysis from position: 29
2 jumps found. (Code = 43) Position 1 = 37, Position 2 = 38
Branch analysis from position: 37
2 jumps found. (Code = 43) Position 1 = 48, Position 2 = 49
Branch analysis from position: 48
2 jumps found. (Code = 43) Position 1 = 59, Position 2 = 60
Branch analysis from position: 59
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 60
Branch analysis from position: 49
Branch analysis from position: 38
Branch analysis from position: 30
Branch analysis from position: 22
Branch analysis from position: 14
Branch analysis from position: 6
filename:       /in/Kmgm9
function name:  (null)
number of ops:  61
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'function_exists'
          1        SEND_VAL                                                 'iconv'
          2        DO_ICALL                                         $0      
          3        BOOL_NOT                                         ~1      $0
          4      > JMPZ                                                     ~1, ->6
    5     5    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+is+missing%0A'
    7     6    >   INIT_FCALL_BY_NAME                                       'iconv'
          7        SEND_VAL_EX                                              'UTF-8'
          8        SEND_VAL_EX                                              'UTF-16BE'
          9        SEND_VAL_EX                                              '%00'
         10        DO_FCALL                                      0  $2      
         11        IS_NOT_IDENTICAL                                         $2, '%00%00'
         12      > JMPZ                                                     ~3, ->14
    8    13    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+convert+U%2B0000%0A'
   10    14    >   INIT_FCALL_BY_NAME                                       'iconv'
         15        SEND_VAL_EX                                              'UTF-8'
         16        SEND_VAL_EX                                              'UTF-16BE'
         17        SEND_VAL_EX                                              '%C4%80'
         18        DO_FCALL                                      0  $4      
         19        IS_NOT_IDENTICAL                                         $4, '%01%00'
         20      > JMPZ                                                     ~5, ->22
   11    21    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+convert+U%2B0100%0A'
   13    22    >   INIT_FCALL_BY_NAME                                       'iconv'
         23        SEND_VAL_EX                                              'UTF-8'
         24        SEND_VAL_EX                                              'UTF-16BE'
         25        SEND_VAL_EX                                              '%EF%BF%BF'
         26        DO_FCALL                                      0  $6      
         27        IS_NOT_IDENTICAL                                         $6, '%FF%FF'
         28      > JMPZ                                                     ~7, ->30
   14    29    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+convert+U%2BFFFF%0A'
   16    30    >   INIT_FCALL_BY_NAME                                       'iconv'
         31        SEND_VAL_EX                                              'UTF-8'
         32        SEND_VAL_EX                                              'UTF-16BE'
         33        SEND_VAL_EX                                              '%F0%90%80%80'
         34        DO_FCALL                                      0  $8      
         35        IS_NOT_IDENTICAL                                         $8, '%D8%00%DC%00'
         36      > JMPZ                                                     ~9, ->38
   17    37    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+convert+U%2B10000%0A'
   19    38    >   BEGIN_SILENCE                                    ~10     
         39        INIT_FCALL_BY_NAME                                       'iconv'
         40        SEND_VAL_EX                                              'UTF-8'
         41        SEND_VAL_EX                                              'UTF-16BE'
         42        SEND_VAL_EX                                              'A%C0%80B'
         43        DO_FCALL                                      0  $11     
         44        END_SILENCE                                              ~10
         45        CAST                                          6  ~12     $11
         46        IS_NOT_IDENTICAL                                         ~12, ''
         47      > JMPZ                                                     ~13, ->49
   20    48    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+reject+C0+80%0A'
   22    49    >   BEGIN_SILENCE                                    ~14     
         50        INIT_FCALL_BY_NAME                                       'iconv'
         51        SEND_VAL_EX                                              'UTF-8'
         52        SEND_VAL_EX                                              'UTF-16BE'
         53        SEND_VAL_EX                                              'A%F4%90%80%80B'
         54        DO_FCALL                                      0  $15     
         55        END_SILENCE                                              ~14
         56        CAST                                          6  ~16     $15
         57        IS_NOT_IDENTICAL                                         ~16, ''
         58      > JMPZ                                                     ~17, ->60
   23    59    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+reject+F4+90+80+80%0A'
   24    60    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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