From:             kraghuba at in dot ibm dot com
Operating system: RHEL 5
PHP version:      6CVS-2007-07-18 (snap)
PHP Bug Type:     Filesystem function related
Bug description:  fgetc() retuns one char when fails to read on php6

Description:
------------
fgets() returns a charecter when it fails to read from file because of
following reasons: 
   1. file pointer already points to end of the file(file opened in mode)

   2. File is opened in the write only mode

Only applicable to php6.

PHP Version:
PHP 6.0.0-dev (cli) (built: Jul 18 2007 20:53:03) (GCOV)
Copyright (c) 1997-2007 The PHP Group
Zend Engine v3.0.0-dev, Copyright (c) 1998-2007 Zend Technologies

OS: RHEL 5
Config : 
  ./configure --enable-gcov


Reproduce code:
---------------
<?php
  $file_handle = fopen("test.txt", "w");
  $data = "testing fgetc";
  fwrite($file_handle, $data);

  // rewind the file pointer to begining of the file
  var_dump( rewind($file_handle) );
  var_dump( ftell($file_handle) );
  var_dump( feof($file_handle) );

  // read from file
  var_dump( fgetc($file_handle) );
  var_dump( ftell($file_handle) );
  var_dump( feof($file_handle) );

  fseek($file_handle, 0, SEEK_END);
  var_dump( fgetc($file_handle) );

  fclose($file_handle);
  unlink("test.txt");
?>

Expected result:
----------------
bool(true)
int(0)
bool(false)
bool(false)
int(0)
bool(false)
bool(false)

Actual result:
--------------
bool(true)
int(0)
bool(false)
string(1) ""
int(0)
bool(true)
string(1) ""

output when run using run-test.php:
-----------------------------------
bool(true)
int(0)
bool(false)
string(1) "ÿ"
int(0)
bool(true)
string(1) "ÿ"

-- 
Edit bug report at http://bugs.php.net/?id=42037&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=42037&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=42037&r=trysnapshot52
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=42037&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=42037&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=42037&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=42037&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=42037&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=42037&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=42037&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=42037&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=42037&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=42037&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=42037&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=42037&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=42037&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=42037&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=42037&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=42037&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=42037&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=42037&r=mysqlcfg

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