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<?php $txt = <<<TXT 1 Hello! 2 How 3 are 4 you? TXT; $file = new SplFileObject('php://memory', 'w+'); $file->fwrite($txt); echo 'Seeking line 1...', PHP_EOL; $file->seek(0); echo 'Position in the file: ', $file->ftell(), PHP_EOL; echo 'Rest of the file: ', PHP_EOL, $file->fread(5000); echo PHP_EOL, '-------------', PHP_EOL; echo 'Seeking line 2...', PHP_EOL; $file->seek(1); echo 'Position in the file: ', $file->ftell(), PHP_EOL; echo 'Rest of the file: ', PHP_EOL, $file->fread(5000);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/O89dJ
function name:  (null)
number of ops:  45
compiled vars:  !0 = $txt, !1 = $file
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '1+Hello%21%0A2+How%0A3+are%0A4+you%3F'
   10     1        NEW                                                  $3      'SplFileObject'
          2        SEND_VAL_EX                                                  'php%3A%2F%2Fmemory'
          3        SEND_VAL_EX                                                  'w%2B'
          4        DO_FCALL                                          0          
          5        ASSIGN                                                       !1, $3
   11     6        INIT_METHOD_CALL                                             !1, 'fwrite'
          7        SEND_VAR_EX                                                  !0
          8        DO_FCALL                                          0          
   13     9        ECHO                                                         'Seeking+line+1...'
         10        ECHO                                                         '%0A'
   14    11        INIT_METHOD_CALL                                             !1, 'seek'
         12        SEND_VAL_EX                                                  0
         13        DO_FCALL                                          0          
   15    14        ECHO                                                         'Position+in+the+file%3A+'
         15        INIT_METHOD_CALL                                             !1, 'ftell'
         16        DO_FCALL                                          0  $8      
         17        ECHO                                                         $8
         18        ECHO                                                         '%0A'
   16    19        ECHO                                                         'Rest+of+the+file%3A+'
         20        ECHO                                                         '%0A'
         21        INIT_METHOD_CALL                                             !1, 'fread'
         22        SEND_VAL_EX                                                  5000
         23        DO_FCALL                                          0  $9      
         24        ECHO                                                         $9
   18    25        ECHO                                                         '%0A'
         26        ECHO                                                         '-------------'
         27        ECHO                                                         '%0A'
   20    28        ECHO                                                         'Seeking+line+2...'
         29        ECHO                                                         '%0A'
   21    30        INIT_METHOD_CALL                                             !1, 'seek'
         31        SEND_VAL_EX                                                  1
         32        DO_FCALL                                          0          
   22    33        ECHO                                                         'Position+in+the+file%3A+'
         34        INIT_METHOD_CALL                                             !1, 'ftell'
         35        DO_FCALL                                          0  $11     
         36        ECHO                                                         $11
         37        ECHO                                                         '%0A'
   23    38        ECHO                                                         'Rest+of+the+file%3A+'
         39        ECHO                                                         '%0A'
         40        INIT_METHOD_CALL                                             !1, 'fread'
         41        SEND_VAL_EX                                                  5000
         42        DO_FCALL                                          0  $12     
         43        ECHO                                                         $12
         44      > RETURN                                                       1

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