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<?php $stream = fopen('php://temp', 'r+'); fwrite($stream, ''); fseek($stream, 0); var_dump($stream); $contents = json_decode('', true); if (json_last_error() != JSON_ERROR_NONE) { echo 'oh no'; } var_dump($contents);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 25, Position 2 = 26
Branch analysis from position: 25
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 26
filename:       /in/71KAj
function name:  (null)
number of ops:  30
compiled vars:  !0 = $stream, !1 = $contents
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'fopen'
          1        SEND_VAL                                                 'php%3A%2F%2Ftemp'
          2        SEND_VAL                                                 'r%2B'
          3        DO_ICALL                                         $2      
          4        ASSIGN                                                   !0, $2
    4     5        INIT_FCALL                                               'fwrite'
          6        SEND_VAR                                                 !0
          7        SEND_VAL                                                 ''
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'fseek'
         10        SEND_VAR                                                 !0
         11        SEND_VAL                                                 0
         12        DO_ICALL                                                 
    7    13        INIT_FCALL                                               'var_dump'
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
    9    16        INIT_FCALL                                               'json_decode'
         17        SEND_VAL                                                 ''
         18        SEND_VAL                                                 <true>
         19        DO_ICALL                                         $7      
         20        ASSIGN                                                   !1, $7
   10    21        INIT_FCALL                                               'json_last_error'
         22        DO_ICALL                                         $9      
         23        IS_NOT_EQUAL                                             $9, 0
         24      > JMPZ                                                     ~10, ->26
   11    25    >   ECHO                                                     'oh+no'
   13    26    >   INIT_FCALL                                               'var_dump'
         27        SEND_VAR                                                 !1
         28        DO_ICALL                                                 
         29      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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