| Techtonik@Php.Net 2005-04-30, 8:56 am |
| ID: 32889
User updated by: techtonik@php.net
Reported By: techtonik@php.net
Status: Closed
Bug Type: Documentation problem
PHP Version: Irrelevant
New Comment:
Tnx. Now everything is clear.
Previous Comments:
------------------------------------------------------------------------
[2005-04-29 18:31:46] wez@php.net
The file pointer is not changed at all by PHP when you truncate.
This is consistent with ANSI ftruncate (man ftruncate).
You are responsible for s ing explicitly if you require it.
------------------------------------------------------------------------
[2005-04-29 16:18:32] vrana@php.net
This bug has been fixed in the documentation's XML sources. Since the
online and downloadable versions of the documentation need some time
to get updated, we would like to ask you to be a bit patient.
Thank you for the report, and for helping us make our documentation
better.
"The file pointer is changed only in append mode. In write mode,
additional fs() call is needed."
------------------------------------------------------------------------
[2005-04-29 13:04:11] techtonik@php.net
Something like "Warning: Truncate doesn't change position of the file
pointer. Adjust the pointer with fs to write to the end of the file
after truncate operation in modes other than "a" and "a+"." ?
Examples:
<?php
$fh = fopen("file.txt","w+");
fwrite($fh, "newfile"); // file contains string 'newfile'
ftruncate($fh, 3);
fs($fh, 0, SEEK_END);
fwrite($fh, "contents"); // file contains 'newcontents'
fclose($fh);
?>
<?php
$fh = fopen("file.txt","w+");
fwrite($fh, "newfile"); // file contains string 'newfile'
ftruncate($fh, 3);
fwrite($fh, "contents"); // file contains 'new contents'
fclose($fh);
?>
------------------------------------------------------------------------
[2005-04-29 12:22:17] tony2001@php.net
"The file pointer is not changed."
(c) man ftruncate
------------------------------------------------------------------------
[2005-04-29 12:12:57] techtonik@php.net
On the second thought it doesn't seem like a feature.
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/32889
--
Edit this bug report at http://bugs.php.net/?id=32889&edit=1
|