php-general Digest 6 Feb 2013 12:50:29 -0000 Issue 8113
Topics (messages 320150 through 320152):
Re: how to calculate how much data does each ip address use ?
320150 by: Peet Grobler
320151 by: Sean Greenslade
PHP + PostgreSQL: pg_query not returning the expected result for this (edge)
case:
320152 by: Peter Ford
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--- Begin Message ---
On 2013/02/01 4:58 PM, Sean Greenslade wrote:
> This task is not really suited for php. I would suggest looking into Ntop.
> It does exactly what you described.
That's one option.
I use a custom system, with perl and bash scripts collecting data and
saving to rrd databases. php script displaying the images.
Using this on a box with 5 interfaces (3 ethernet, 1 openvpn tunnel, 1
ppp session).
--- End Message ---
--- Begin Message ---
On Tue, Feb 5, 2013 at 10:13 AM, Bulent Malik <bma...@ihlas.net.tr> wrote:
>
>
>> >This task is not really suited for php. I would suggest looking into
> Ntop.
>> >It does exactly what you described.
>>
>> >> Hello
>> >>
>> >> I have a freebsdbox firewall . also I have some internet customers.
>> >> I want to save how much data they used in a table ( such as mysql
>> >>table ) for each ip address.
>> >>Apache2, php5 and mysql5.5 work on the box.
>> >>
>> >> How can I do it ? any script or tool.
>> >>
>> >> Thanks
>>
>> How can i save in table using ntop ? is there any document ?
>>
>>
>> --
>> PHP General Mailing List (http://www.php.net/) To unsubscribe, visit:
>> http://www.php.net/unsub.php
>>
>
>>Read the man pages. There are sql export options that you can specify on run.
>
> I could not see any sql options on the man file of ntop.
> Where is it?
>
>
>
Whoops, my mistake. I was reading the NetFlow documentation and going
off vague memories of older versions of Ntop.
Ntop saves data in RRD files. There are PHP libraries to parse this
data [1]. You could theoretically scrape the RRDs and put them in a
SQL DB, but they may be useful enough on their own if you can parse
them correctly. (Note: I have never personally parsed RRDs manually.
This info was pulled from a simple Google search. YMMV.)
[1] http://www.ioncannon.net/system-administration/59/php-rrdtool-tutorial/
--
--Zootboy
Sent from some sort of computing device.
--- End Message ---
--- Begin Message ---
Here's a tricky one:
Versions: I'm using PostgreSQL 9.0.7 and PHP 5.3.8.
First, I have a table "bob" with two columns: "bobid" (integer) and "bobtext"
(text). The "bobid" field defaults to a sequence called "bob_seq" which is just
a simple counter (1,2,3 etc.)
I can do an INSERT query into "bob":
INSERT INTO bob (bobtext) VALUES ('Hello Bob') RETURNING bobid;
and get the value the sequence has given me for "bobid": this works fine using
both the psql tool and pg_query in PHP.
I can also do an UPDATE query in the same vein:
UPDATE bob SET bobtext='Hello Bob revisited' WHERE bobid=<x> RETURNING bobid;
where <x> is a valid "bobid" value for an existing record in the table. This
returns the value of "bobid" for the updated record which should be the same as
<x> and again it works in the psql tool and in pg_query.
Next, I have a VIEW based on "bob", called "fred". It is simply defined as
CREATE VIEW fred AS (
SELECT * FROM bob
);
I have two rules on "fred" which allow me to alter the view.
The first is used for INSERT into "fred", which translates them into INSERT into
"bob":
CREATE OR REPLACE RULE fred_insert AS
ON INSERT TO fred
DO INSTEAD
INSERT INTO bob (bobtext) VALUES (NEW.bobtext) RETURNING *
;
The second is used for UPDATE on "fred", which translates to creating a new
record in "bob" and deleting the old record:
CREATE OR REPLACE RULE fred_update AS
ON UPDATE TO fred
DO INSTEAD (
INSERT INTO bob (bobtext) VALUES (NEW.bobtext) RETURNING *;
DELETE FROM bob WHERE bobid=OLD.bobid;
)
;
Note that these rules both return all of the fields of the newly inserted "bob"
records back up the chain to be accessible to the original query.
Now, I can insert into "fred" knowing that the rule will handle it:
INSERT INTO fred (bobtext) VALUES ('Hello Fred') RETURNING bobid;
and that should return the new "bobid" value of the inserted record (from the
"bob_seq" sequence). It still works in the psql tool and in pg_query.
I should also be able to exercise the update rule on "fred":
UPDATE fred SET bobtext='Hello Fred revisited' WHERE bobid=<x> RETURNING bobid
where <x> is a valid "bobid" value for an existing record in the table.
This should insert a new row with a new "bobid" from the sequence and the new
"bobtext" value, delete the row with "bobid"=<x>, and return the "bobid" for the
new row.
Here's the punchline (at last):
It works in the psql tool.
It doesn't work in pg_query.
<?php
$result = pg_query("UPDATE fred SET bobtext='Hello Fred revisited' WHERE
bobid=42 RETURNING bobid"); // Assume there is a record with bobid==42
if ($result && pg_numrows($result))
{
echo pg_numrows($result).PHP_EOL;
echo pg_fetch_result($result, 0, 0).PHP_EOL;
)
?>
Tells me there that although the $result resource is valid, there are no rows
and therefore no result to fetch (PHP Warning: pg_fetch_result(): Unable to
jump to row 0 on PostgreSQL result ...)
So: why is the return from the UPDATE rule different to the return from the
INSERT rule in PHP pgsql?
Thanks for taking the time...
Cheers
Pete
--
Peter Ford, Developer phone: 01580 893333 fax: 01580 893399
Justcroft International Ltd. www.justcroft.com
Justcroft House, High Street, Staplehurst, Kent TN12 0AH United Kingdom
Registered in England and Wales: 2297906
Registered office: Stag Gates House, 63/64 The Avenue, Southampton SO17 1XS
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