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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 ( ($rv = @iconv( 'UTF-8', 'UTF-16BE', "\xc0\x80" )) !== false ) { echo( "JsonFallback: iconv PHP extension failed to reject C0 80\n" ); var_dump( $rv ); } if ( ($rv = @iconv( 'UTF-8', 'UTF-16BE', "\xf4\x90\x80\x80" )) !== false ) { echo( "JsonFallback: iconv PHP extension failed to reject F4 90 80 80\n" ); var_dump( $rv ); }
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 = 52
Branch analysis from position: 48
2 jumps found. (Code = 43) Position 1 = 62, Position 2 = 66
Branch analysis from position: 62
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 66
Branch analysis from position: 52
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/CeNNi
function name:  (null)
number of ops:  67
compiled vars:  !0 = $rv
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'function_exists'
          1        SEND_VAL                                                 'iconv'
          2        DO_ICALL                                         $1      
          3        BOOL_NOT                                         ~2      $1
          4      > JMPZ                                                     ~2, ->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  $3      
         11        IS_NOT_IDENTICAL                                         $3, '%00%00'
         12      > JMPZ                                                     ~4, ->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  $5      
         19        IS_NOT_IDENTICAL                                         $5, '%01%00'
         20      > JMPZ                                                     ~6, ->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  $7      
         27        IS_NOT_IDENTICAL                                         $7, '%FF%FF'
         28      > JMPZ                                                     ~8, ->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  $9      
         35        IS_NOT_IDENTICAL                                         $9, '%D8%00%DC%00'
         36      > JMPZ                                                     ~10, ->38
   17    37    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+convert+U%2B10000%0A'
   19    38    >   BEGIN_SILENCE                                    ~11     
         39        INIT_FCALL_BY_NAME                                       'iconv'
         40        SEND_VAL_EX                                              'UTF-8'
         41        SEND_VAL_EX                                              'UTF-16BE'
         42        SEND_VAL_EX                                              '%C0%80'
         43        DO_FCALL                                      0  $12     
         44        END_SILENCE                                              ~11
         45        ASSIGN                                           ~13     !0, $12
         46        TYPE_CHECK                                  1018          ~13
         47      > JMPZ                                                     ~14, ->52
   20    48    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+reject+C0+80%0A'
   21    49        INIT_FCALL                                               'var_dump'
         50        SEND_VAR                                                 !0
         51        DO_ICALL                                                 
   23    52    >   BEGIN_SILENCE                                    ~16     
         53        INIT_FCALL_BY_NAME                                       'iconv'
         54        SEND_VAL_EX                                              'UTF-8'
         55        SEND_VAL_EX                                              'UTF-16BE'
         56        SEND_VAL_EX                                              '%F4%90%80%80'
         57        DO_FCALL                                      0  $17     
         58        END_SILENCE                                              ~16
         59        ASSIGN                                           ~18     !0, $17
         60        TYPE_CHECK                                  1018          ~18
         61      > JMPZ                                                     ~19, ->66
   24    62    >   ECHO                                                     'JsonFallback%3A+iconv+PHP+extension+failed+to+reject+F4+90+80+80%0A'
   25    63        INIT_FCALL                                               'var_dump'
         64        SEND_VAR                                                 !0
         65        DO_ICALL                                                 
   26    66    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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