[PHP-DEV] Bug #10989 Updated: Wrong file writing
ID: 10989
User Update by: [EMAIL PROTECTED]
Old-Status: Open
Status: Closed
Bug Type: Filesystem function related
Operating system: Win2K-Win98-UNIX
PHP Version: 4.0 Latest CVS (2001-05-21)
Description: Wrong file writing
Ok, I've found the solution: simply call clearstatcache() before filesize().
Previous Comments:
---
[2001-05-21 10:57:52] [EMAIL PROTECTED]
?php
//At the end of the script test.txt should
//contains ADD1ADD2, but, as you can see,
//it will contains just ADD2.
//Is there a work around for this problem ?
function read_file ($file_name)
{
$file = fopen($file_name, r);
flock($file, 1);
$content = trim(fread($file, filesize($file_name)));
flock($file, 3);
fclose ($file);
return ($content);
}
function write_file ($content, $file_name)
{
$file = fopen($file_name, w);
flock($file, 2);
fwrite($file, $content);
flock($file, 3);
fclose ($file);
}
$filename=test.txt;
write_file(, $filename);
$content = read_file($filename);
$content .= ADD1;
write_file($content, $filename);
$content = read_file($filename);
$content .= ADD2;
write_file($content, $filename);
?
---
Full Bug description available at: http://bugs.php.net/?id=10989
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[PHP-DEV] Bug #10989 Updated: Wrong file writing
ID: 10989
Updated by: derick
Reported By: [EMAIL PROTECTED]
Old-Status: Closed
Status: Analyzed
Bug Type: Filesystem function related
Operating system:
PHP Version: 4.0 Latest CVS (2001-05-21)
Assigned To:
Comments:
This should not be closed yet, as I think it's a valid bug.
Derick
Previous Comments:
---
[2001-05-21 11:52:14] [EMAIL PROTECTED]
Ok, I've found the solution: simply call clearstatcache() before filesize().
---
[2001-05-21 10:57:52] [EMAIL PROTECTED]
?php
//At the end of the script test.txt should
//contains ADD1ADD2, but, as you can see,
//it will contains just ADD2.
//Is there a work around for this problem ?
function read_file ($file_name)
{
$file = fopen($file_name, r);
flock($file, 1);
$content = trim(fread($file, filesize($file_name)));
flock($file, 3);
fclose ($file);
return ($content);
}
function write_file ($content, $file_name)
{
$file = fopen($file_name, w);
flock($file, 2);
fwrite($file, $content);
flock($file, 3);
fclose ($file);
}
$filename=test.txt;
write_file(, $filename);
$content = read_file($filename);
$content .= ADD1;
write_file($content, $filename);
$content = read_file($filename);
$content .= ADD2;
write_file($content, $filename);
?
---
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To reply, use the web interface found at http://bugs.php.net/?id=10989edit=2
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[PHP-DEV] Bug #10989 Updated: Wrong file writing
ID: 10989
Updated by: cynic
Reported By: [EMAIL PROTECTED]
Old-Status: Analyzed
Status: Bogus
Bug Type: Filesystem function related
Operating system:
PHP Version: 4.0 Latest CVS (2001-05-21)
Assigned To:
Comments:
It's not. The clearstatcache() is really needed (per manual). The result of filesize()
is cached (and it's 0), so on all the calls to read_file() 0 bytes is read, hence
$filename=test.txt;
write_file(, $filename);
# filesize() returns 0, and the result is cached
$content = read_file($filename);
# read filesize(), i. e. the cached 0 bytes. ok this time
$content .= ADD1;
write_file($content, $filename);
$content = read_file($filename);
# read filesize(), i. e. the cached 0 bytes. this time it's not ok
# == $content
$content .= ADD2;
write_file($content, $filename);
BTW I think it should be bogusified (user error).
Previous Comments:
---
[2001-05-21 11:55:50] [EMAIL PROTECTED]
This should not be closed yet, as I think it's a valid bug.
Derick
---
[2001-05-21 11:52:14] [EMAIL PROTECTED]
Ok, I've found the solution: simply call clearstatcache() before filesize().
---
[2001-05-21 10:57:52] [EMAIL PROTECTED]
?php
//At the end of the script test.txt should
//contains ADD1ADD2, but, as you can see,
//it will contains just ADD2.
//Is there a work around for this problem ?
function read_file ($file_name)
{
$file = fopen($file_name, r);
flock($file, 1);
$content = trim(fread($file, filesize($file_name)));
flock($file, 3);
fclose ($file);
return ($content);
}
function write_file ($content, $file_name)
{
$file = fopen($file_name, w);
flock($file, 2);
fwrite($file, $content);
flock($file, 3);
fclose ($file);
}
$filename=test.txt;
write_file(, $filename);
$content = read_file($filename);
$content .= ADD1;
write_file($content, $filename);
$content = read_file($filename);
$content .= ADD2;
write_file($content, $filename);
?
---
ATTENTION! Do NOT reply to this email!
To reply, use the web interface found at http://bugs.php.net/?id=10989edit=2
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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