#38947 [NEW]: Unable to extend mysqli class properly without causing various fatal errors

[rk at yes-co dot nl]

From: rk at yes-co dot nl
Operating system: Debian
PHP version: 5.1.6
PHP Bug Type: MySQLi related
Bug description: Unable to extend mysqli class properly without causing various fatal errors

Description:
------------
Problem with extension of mysqli library.

Reproduce code:
---------------
<?php
//loaded mysql via dl() function
$server = 'localhost'; $dbname = 'ws_matching'; $username = 'root';
$password = ''; $port = 3306; $socket = '/tmp/mysql.sock';
class example_mysqli extends mysqli{
function query($query){
$result = parent::query($query);
if(mysqli_error($this)){
throw new exception(mysqli_error($this), mysqli_errno($this));
}
return $result;
}
}
//$my = new mysqli($server,$username,$password,$dbname,$port,$ socket);
//works properly
$my = new example_mysqli($server,$username,$password,
$dbname,$port,$socket); //gives strange errors
$result = $my->query('SELECT * FROM housesnl_demand');
while($row = $result->fetch_row()){
print_r($row);
}
$result->close();
$my->close();
?>

Expected result:
----------------
Array ( [0] => 2006-09-25 12:09:58 )

Actual result:
--------------
possible fatal errors:

Fatal error: mysqli_stmt::data_seek() must be derived from
example_mysqli::data_seek in Unknown on line 0

Fatal error: mysqli_stmt::bind_param() must be derived from
example_mysqli::bind_param in Unknown on line 0


Warning: Wrong parameter count for mysqli_stmt::mysqli_stmt() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php on
line 19


Fatal error: Call to undefined method mysqli_warning::query() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php on
line 11

etc... error changes

--
Edit bug report at [url]http://bugs.php.net/?id=38947&edit=1[/url]
--
Try a CVS snapshot (PHP 4.4): [url]http://bugs.php.net/fix.php?id=38947&r=trysnapshot44[/url]
Try a CVS snapshot (PHP 5.2): [url]http://bugs.php.net/fix.php?id=38947&r=trysnapshot52[/url]
Try a CVS snapshot (PHP 6.0): [url]http://bugs.php.net/fix.php?id=38947&r=trysnapshot60[/url]
Fixed in CVS: [url]http://bugs.php.net/fix.php?id=38947&r=fixedcvs[/url]
Fixed in release: [url]http://bugs.php.net/fix.php?id=38947&r=alreadyfixed[/url]
Need backtrace: [url]http://bugs.php.net/fix.php?id=38947&r=needtrace[/url]
Need Reproduce Script: [url]http://bugs.php.net/fix.php?id=38947&r=needscript[/url]
Try newer version: [url]http://bugs.php.net/fix.php?id=38947&r=oldversion[/url]
Not developer issue: [url]http://bugs.php.net/fix.php?id=38947&r=support[/url]
Expected behavior: [url]http://bugs.php.net/fix.php?id=38947&r=notwrong[/url]
Not enough info: [url]http://bugs.php.net/fix.php?id=38947&r=notenoughinfo[/url]
Submitted twice: [url]http://bugs.php.net/fix.php?id=38947&r=submittedtwice[/url]
register_globals: [url]http://bugs.php.net/fix.php?id=38947&r=globals[/url]
PHP 3 support discontinued: [url]http://bugs.php.net/fix.php?id=38947&r=php3[/url]
Daylight Savings: [url]http://bugs.php.net/fix.php?id=38947&r=dst[/url]
IIS Stability: [url]http://bugs.php.net/fix.php?id=38947&r=isapi[/url]
Install GNU Sed: [url]http://bugs.php.net/fix.php?id=38947&r=gnused[/url]
Floating point limitations: [url]http://bugs.php.net/fix.php?id=38947&r=float[/url]
No Zend Extensions: [url]http://bugs.php.net/fix.php?id=38947&r=nozend[/url]
MySQL Configuration Error: [url]http://bugs.php.net/fix.php?id=38947&r=mysqlcfg[/url]

[tony2001@php.net]

ID: 38947
Updated by: [email]tony2001@php.net[/email]
Reported By: rk at yes-co dot nl
-Status: Open
+Status: Bogus
Bug Type: MySQLi related
Operating System: Debian
PHP Version: 5.1.6
New Comment:

Parent constructor (parent::__construct()) must be called explicitly
when extending MySQLi.


Previous Comments:
------------------------------------------------------------------------

[2006-09-25 10:14:05] rk at yes-co dot nl

Description:
------------
Problem with extension of mysqli library.

Reproduce code:
---------------
<?php
//loaded mysql via dl() function
$server = 'localhost'; $dbname = 'ws_matching'; $username = 'root';
$password = ''; $port = 3306; $socket = '/tmp/mysql.sock';
class example_mysqli extends mysqli{
function query($query){
$result = parent::query($query);
if(mysqli_error($this)){
throw new exception(mysqli_error($this), mysqli_errno($this));
}
return $result;
}
}
//$my = new mysqli($server,$username,$password,$dbname,$port,$ socket);
//works properly
$my = new example_mysqli($server,$username,$password,
$dbname,$port,$socket); //gives strange errors
$result = $my->query('SELECT * FROM housesnl_demand');
while($row = $result->fetch_row()){
print_r($row);
}
$result->close();
$my->close();
?>

Expected result:
----------------
Array ( [0] => 2006-09-25 12:09:58 )

Actual result:
--------------
possible fatal errors:

Fatal error: mysqli_stmt::data_seek() must be derived from
example_mysqli::data_seek in Unknown on line 0

Fatal error: mysqli_stmt::bind_param() must be derived from
example_mysqli::bind_param in Unknown on line 0


Warning: Wrong parameter count for mysqli_stmt::mysqli_stmt() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php
on line 19


Fatal error: Call to undefined method mysqli_warning::query() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php
on line 11

etc... error changes


------------------------------------------------------------------------


--
Edit this bug report at [url]http://bugs.php.net/?id=38947&edit=1[/url]

[rk at yes-co dot nl]

ID: 38947
User updated by: rk at yes-co dot nl
Reported By: rk at yes-co dot nl
Status: Bogus
Bug Type: MySQLi related
Operating System: Debian
PHP Version: 5.1.6
New Comment:

I tried that first this is just a simple example of a more complex
issue, even when parent constructor is called problems arise


Previous Comments:
------------------------------------------------------------------------

[2006-09-25 10:19:24] [email]tony2001@php.net[/email]

Parent constructor (parent::__construct()) must be called explicitly
when extending MySQLi.

------------------------------------------------------------------------

[2006-09-25 10:14:05] rk at yes-co dot nl

Description:
------------
Problem with extension of mysqli library.

Reproduce code:
---------------
<?php
//loaded mysql via dl() function
$server = 'localhost'; $dbname = 'ws_matching'; $username = 'root';
$password = ''; $port = 3306; $socket = '/tmp/mysql.sock';
class example_mysqli extends mysqli{
function query($query){
$result = parent::query($query);
if(mysqli_error($this)){
throw new exception(mysqli_error($this), mysqli_errno($this));
}
return $result;
}
}
//$my = new mysqli($server,$username,$password,$dbname,$port,$ socket);
//works properly
$my = new example_mysqli($server,$username,$password,
$dbname,$port,$socket); //gives strange errors
$result = $my->query('SELECT * FROM housesnl_demand');
while($row = $result->fetch_row()){
print_r($row);
}
$result->close();
$my->close();
?>

Expected result:
----------------
Array ( [0] => 2006-09-25 12:09:58 )

Actual result:
--------------
possible fatal errors:

Fatal error: mysqli_stmt::data_seek() must be derived from
example_mysqli::data_seek in Unknown on line 0

Fatal error: mysqli_stmt::bind_param() must be derived from
example_mysqli::bind_param in Unknown on line 0


Warning: Wrong parameter count for mysqli_stmt::mysqli_stmt() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php
on line 19


Fatal error: Call to undefined method mysqli_warning::query() in
/mnt/data/home/rob/public_html/MatchingRevised/strange_error_mysqli.php
on line 11

etc... error changes


------------------------------------------------------------------------


--
Edit this bug report at [url]http://bugs.php.net/?id=38947&edit=1[/url]