ID: 32889
User updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Closed
Bug Type: Documentation problem
PHP Version: Irrelevant
New Comment:
Tnx. Now everything is clear.
Previous Comments:
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[2005-04-29 18:31:46] [EMAIL PROTECTED]
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 seeking explicitly if you require it.
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[2005-04-29 16:18:32] [EMAIL PROTECTED]
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 fseek() call is needed."
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[2005-04-29 13:04:11] [EMAIL PROTECTED]
Something like "Warning: Truncate doesn't change position of the file
pointer. Adjust the pointer with fseek 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($fh, 3);
fseek($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] [EMAIL PROTECTED]
"The file pointer is not changed."
(c) man ftruncate
------------------------------------------------------------------------
[2005-04-29 12:12:57] [EMAIL PROTECTED]
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
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