php 5 and mysql failure

[Caffeneide]

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

[Luuk]

Caffeneide schreef:

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

yes, there is..
http://tinyurl.com/3jgwjn

but, how many (or how much?) id's do get returned at max?
maybe you have to rewrite your solution to get a working one..

--
Luuk

[Jerry Stuckle]

Caffeneide wrote:

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Caffeneide]

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

Caffeneide wrote:

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

thanks. the query is correct because only sometimes I got this
error...but the way on which I got this error seems to be completely
random...the number of ids I returned is quite variable but it's
around some (one-two-three) hundreds

[Caffeneide]

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

Caffeneide wrote:

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Probably it's a problem related to php and mysql. if I copy and paste
the query in phpmyadmin it always works, so I wouldn't say it's a
mysql limit problem.

[Rik Wasmus]

On Mon, 05 May 2008 09:32:02 +0200, Caffeneide <mo****@gmail.comwrote:

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

>Caffeneide wrote:

I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,

YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

thanks. the query is correct because only sometimes I got this
error...

I'd say: the (building of the) query is incorrect because sometimes you
get an error. How are you building it?

but the way on which I got this error seems to be completely
random...the number of ids I returned is quite variable but it's
around some (one-two-three) hundreds

In the small hundreds should be a piece of cake for any database, so
that's probably not an issue. (Well, at least not on the MySQL side of
things).

And last but not least: when echoing out a query to check it's results
another way (phpMyAdmin, command line) always copy the _source_, and never
just what's in a browser window.
--
Rik Wasmus

[Jerry Stuckle]

Caffeneide wrote:

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

>Caffeneide wrote:

>>I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,
YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

thanks. the query is correct because only sometimes I got this
error...but the way on which I got this error seems to be completely
random...the number of ids I returned is quite variable but it's
around some (one-two-three) hundreds

If the query were correct, you would not be getting the error you are
getting.

Your error indicates mysql_query() returned false. It did not return
zero entries; that is still a result resource (albeit an empty one).

ALWAYS check the result of mysql_query(). And when it returns false,
try logging the error returned by mysql_error(). It also may help to
log the SELECT statement itself.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Jerry Stuckle]

Caffeneide wrote:

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

>Caffeneide wrote:

>>I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,
YEHUDI GARRETT

It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Probably it's a problem related to php and mysql. if I copy and paste
the query in phpmyadmin it always works, so I wouldn't say it's a
mysql limit problem.

Probably it's a problem in your code. If it were a problem related to
php and mysql, phpmyadmin would fail also - it is also php and mysql.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Caffeneide]

On May 5, 2:13 pm, Jerry Stuckle <[e-mail]:

Caffeneide wrote:

On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:

Caffeneide wrote:
I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,
YEHUDI GARRETT
It's possible you're running into a limit, but it's quite large.

The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Probably it's a problem related to php and mysql. if I copy and paste
the query in phpmyadmin it always works, so I wouldn't say it's a
mysql limit problem.

Probably it's a problem in your code. If it were a problem related to
php and mysql, phpmyadmin would fail also - it is also php and mysql.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Thank you Jerry, useful hint. This is the error logged: 2006: MySQL
server has gone away

Where has he gone? What can be the problem?

[Jerry Stuckle]

Caffeneide wrote:

On May 5, 2:13 pm, Jerry Stuckle <[e-mail]:

>Caffeneide wrote:

>>On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:
Caffeneide wrote:
I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,
YEHUDI GARRETT
It's possible you're running into a limit, but it's quite large.
The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================
Probably it's a problem related to php and mysql. if I copy and paste
the query in phpmyadmin it always works, so I wouldn't say it's a
mysql limit problem.

Probably it's a problem in your code. If it were a problem related to
php and mysql, phpmyadmin would fail also - it is also php and mysql.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Thank you Jerry, useful hint. This is the error logged: 2006: MySQL
server has gone away

Where has he gone? What can be the problem?

OK, now we're making some progress. This is a MySQL failure, not one in
PHP (although your query may still have problems).

You need to follow this up on comp.databases.mysql (where I see you also
started a thread).

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Caffeneide]

On 5 Mag, 19:05, Jerry Stuckle <[e-mail]:

Caffeneide wrote:

On May 5, 2:13 pm, Jerry Stuckle <[e-mail]:

Caffeneide wrote:
On Apr 30, 5:38 pm, Jerry Stuckle <[e-mail]:
Caffeneide wrote:
I'm using a php script which performs three xml queries to other three
servers to retrieve a set of ids and after I do a query to mysql of
the kind
SELECT * FROM table WHERE id IN ('set of ids');
Although I'm sure the connection to the database is ok, I sometimes
get an error of this kind:
*Warning*: mysql_fetch_object(): supplied argument is not a valid
MySQL result resource in ...
This does not happen every time i run the script, only sometimes.
If I echo the query, copy and paste in phpmyadmin, or if I perform the
same query in a script that does only the query without the rest it
works!
After troubleshooting this issue I noticed that it usually failed when
I had a big set of ids (positive response from more than one server).
This means that the script used a bigger amount of memory and probably
more resources, but I did not get an "out of memory error", I got the
one described before.
My question is, is there any kind of limit somewhere in php5 or in
mysql (version 5)?
Thanks for help,
YEHUDI GARRETT
It's possible you're running into a limit, but it's quite large.
The "supplied argument is not a valid MySQL result resource" indicates
your mysql_query() returned false, probably. You should ALWAYS check
the result of mysql_query(), and if it fails, log the error (you really
don't want to display those errors to your users, do you?). Or, on a
development system, display the error.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================
Probably it's a problem related to php and mysql. if I copy and paste
the query in phpmyadmin it always works, so I wouldn't say it's a
mysql limit problem.
Probably it's a problem in your code. If it were a problem related to
php and mysql, phpmyadmin would fail also - it is also php and mysql.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

Thank you Jerry, useful hint. This is the error logged: 2006: MySQL
server has gone away

Where has he gone? What can be the problem?

OK, now we're making some progress. This is a MySQL failure, not one in
PHP (although your query may still have problems).

You need to follow this up on comp.databases.mysql (where I see you also
started a thread).

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================

thanks, it's seems I resolved this error increasing the value of MySQL
"wait_timeout" options...thank you!