#23582 [Opn->Bgs]: Objects and handles
| From: | wez@php.net | Date: | Sun, 11 May 2003 10:34:31 +0000 |
| Subject: | #23582 [Opn->Bgs]: Objects and handles | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-39438@lists.php.net to get a copy of this message | ||
ID: 23582
Updated by: wez@php.net
Reported By: philip dot nilsson at chello dot se
-Status: Open
+Status: Bogus
Bug Type: Class/Object related
Operating System: Windows XP
PHP Version: 4.3.2RC2
New Comment:
$this->$file should be $this->file.
Please read the section on variable variables in the manual.
User error -> bogus.
Previous Comments:
------------------------------------------------------------------------
[2003-05-11 05:18:22] philip dot nilsson at chello dot se
This bug resembles http://bugs.php.net/bug.php?id=23576, but I am not
really sure if they are the same.
First, I'll show a working(or not working, :)) example:
--------
class CTest {
var $filename; var $file;
function CTest() { $this->$filename = 'data/data.txt'; }
function Write($data1, $data2) {
$data[] = array($data1, $data2);
$this->$file = fopen($this->$filename, 'w');
for ($i = 0; $i < count($data); $i++)
fwrite($this->$file, implode('||', $data[$i]));
fclose($this->$file);
}
}
$test = new CTest();
print('<pre>'); print_r($test); print('</pre>');
$test->Write('data', 'moredata');
print('<pre>'); print_r($test); print('</pre>');
--------
And the output:
--------
ctest Object
(
[filename] =>
[file] =>
[] => data/data.txt
)
ctest Object
(
[filename] =>
[file] =>
[] => Resource id #1
)
--------
And the output I expected:
--------
ctest Object
(
[filename] => data/data.txt
[file] => empty, maybe?
)
ctest Object
(
[filename] => data/data.txt
[file] => Resource id #1
)
--------
As you can see the class members gets changed. If I remove the
constructor, the empty [] variable disappears, but the variables still
gets messed up. This behaviour is completely unexpected, and also
totally illogical. I don't think this bug affects objects that do not
use handles, but it might. And I haven't tested it on Linux yet, but I
do not think it would work there either.
This bug has been in PHP at least a couple versions as I remember it
from about a year ago, I tried to make a class that would handle my
database connections, but the handle got invalid after the first use.
Fixing it would be really nice.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=23582&edit=1