From: mike at cocoweb dot co dot uk
Operating system: Windows XP
PHP version: 5.0.2
PHP Bug Type: Strings related
Bug description: fwrite baboonacy
Description:
------------
fwrite() seems to behave incorrectly when using fopen with the "wt" flag
on windows...
If you open a file using fopen and "w" the supplied code works as
expected, by placing \0x0A characters for \n. Which is correct. However
the fopen documentation clearly says to use "wt" on windows for text
files...
If you do, then fwrite() attempts to write all the characters, but because
it counts the '\n' characters once, it gets to the end of the string early
(zero terminator)... i.e. before it has finished writing all the bytes
that it should have.
Reproduce code:
---------------
$fp = fopen("bob.txt", "wt")
// This is the line I'd expect to work for files
// opened in "wt" mode:
fwrite($fp, "hello\n\n\n", 11)
(11 is intentional, as in "wt" mode, the \n's are two bytes,
and hence the fwrite() should be outputting two bytes for each
'\n'), which it does. It just counts the string incorrectly in "wt"
mode.
Expected result:
----------------
Binary output:
'h' 'e' 'l' 'l' 'o' \0x0d \0x0a \0x0d \0x0a \0x0d \0x0a
Actual result:
--------------
Binary output:
'h' 'e' 'l' 'l' 'o' \0x0d \0x0a \0x0d
The Dialogue:
Mr. fwrite: "I've finished cos I found a \0x00 on the input string..."
Developer: "err... no you haven't finished, wasn't your file
opened in 'wt' mode, and therefore you need to count \n as two bytes?"
Mr. fwrite: "Oh I forgot about that".
Developer: "Doh!".
I am expecting a reply such as:
Mr. PHP.net: "You have forgotten something obvious Mr. Developer" ;o))))
--
Edit bug report at http://bugs.php.net/?id=31540&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31540&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=31540&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=31540&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=31540&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=31540&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=31540&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=31540&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=31540&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=31540&r=support
Expected behavior: http://bugs.php.net/fix.php?id=31540&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=31540&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=31540&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=31540&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31540&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=31540&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=31540&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=31540&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=31540&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=31540&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=31540&r=mysqlcfg
