Any ideas how to generate a unique serial number that you can check that
it's valid..
Thanks...
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OK,
here is the answer in (unedited except for comments)code:
$query = select count(vid) as total_qs from poll_vote where pid = $pid;
// count the number of fields in the table
$result = mysql_query($query) or die(Query failed: $querybr .
mysql_error());
$row = mysql_fetch_array($result);
if u are looking for a simple random string try this php:
echo md5(time());
or md5() a random number your choice.
md5() genetates a one way non-reversable hash. which could be kept in a db.
here is an example of the md5 hash of my library card number:
11d560821fb027c227d837df53a5a73a
md5()
I need to create some kind of 10 digits serial number where I can generate
and check that it is valid. Sort of like a checksum..
Jj Harrison [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
if u are looking for a simple random string try this php:
echo
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi
I have a database thats taking a bit of a hammering - enough so that the
number of connections spirals up and out of control.
max_connections was originally at the default of 100 - but rising above 50 or
so meant actual throughput dropped so
Hi guys,
Just stumble on this problem. I need to be able to include a file from another server
into one of my script. Not to difficult except that the file is on a secure server and
it doesn't seem to work.
Anybody knows of a way around.
I have php 4 running on Red Hat with mysql databse.
on 7/30/02 9:10 AM, Camelia Enderby at [EMAIL PROTECTED] appended the following
bits to my mbox:
Just stumble on this problem. I need to be able to include a file from another
server into one of my script. Not to difficult except that the file is on a
secure server and it doesn't seem to
I'm running MySQL 3.23.47 and PHP 4.1.2 on Mac OS X 10.1.5.
In my table, I've got two fields: Name VARCHAR(35) and txtSWDesc1 TEXT.
According to the manual, TEXT will give me a maximum space of 65,536
bytes per field. I've entered text in this field in the amount of
approximately
500 characters.
I would suggest looking into MySQL's replication support. Split reads and
writes so they go to separate servers. That is, create a master server
where you send all database writes. And do all reads on the replicated
slave servers.
Have a look at this presentation I gave last week on this
Maybe it will help you but I've read that when using persistent connections
PHP uses 2 on every request.
So if in one moment you have 10 scripts,that use persistent connections,
running you will have 20 connections used to the mysql.
Regards,
Andrey
- Original Message -
From: Paul
Thank you for that idea. I don't think that's it, though, because this
script is the only one I'm ever running on this site. The problem is
perfectly consistent and repeatable, which leads me to believe it's
something in the way the array is being built.
Paul Worthington
[EMAIL PROTECTED]
Do you have PhpMyAdmin installed? If you have try with it to see the
results. It uses native mysql functions.
Andrey
- Original Message -
From: Paul Worthington [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, July 30, 2002 7:53 PM
Subject: Re: [PHP-DB] mysql_fetch_array limit? -
No I don't have PhpMyAdmin installed. I work directly in MySQL via a
terminal, so all my checking is with native calls anyway. Working natively
in MySQL, all my data is there and everything works the way I expect it to.
Using mysql_fetch_array() in PHP results in a truncated result set. And I am
What do you mean it uses 2? It does not.
On Tue, 30 Jul 2002, Andrey Hristov wrote:
Maybe it will help you but I've read that when using persistent connections
PHP uses 2 on every request.
So if in one moment you have 10 scripts,that use persistent connections,
running you will have 20
Hello,
last week I read this article :
http://phplens.com/lens/php-book/optimizing-debugging-php.php
It is long one. Extract from it (look where is it and read around it):
[snip]
Overload on 40 connections
When we pushed the benchmark to use 40 connections, the server overloaded
with 35%
The only reason it uses two is if the code using persistent connections
connects with different credentials. ie. you have 2 different apps on the
same server that connects as 2 different user ids and they are both using
persistent connections. Eventually every httpd will have 2 connections.
-R
Yeaah!
I am a fool. My biggest excuses.
Sorry Rasmus and everyone else.
Andrey
- Original Message -
From: Rasmus Lerdorf [EMAIL PROTECTED]
To: Andrey Hristov [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Sent: Tuesday, July 30, 2002 8:11 PM
Subject: Re: [PHP-DB] mysql_fetch_array limit? -
-Original Message-
From: Paul Worthington [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, July 30, 2002 9:34 AM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] mysql_fetch_array limit? - more details
What happens is I'm only getting the first 256 characters of
txtSWDesc1 displayed in my
I use mysql_fetch array to retrieve large text data many many times
without a problem. I've actually written functions to retrieve the data for me using
this
function, and I never had a single problem, truncated or speed, on Unix,
Linux or Windows platform.
Check out the code for the
One thing I haven't seen yet is a cut-n-paste of your db tables. Could you
post that to this list? Maybe there's something you're overlooking there?
Maybe seomebody will find something amiss there.
I know it sounds simple and you might think you have it all down right, but
how many times have
on 7/30/02 10:34 AM, Paul Worthington at [EMAIL PROTECTED] appended the
following bits to my mbox:
I'm using this PHP code, very simple and straightforward, to select two
columns into an array and then display the results in an HTML table:
I've run into a sticky case where my query is failing (PHP4.x/MySQL).
I have a table where the price value is imported from an external
source, so I can't change it on the fly, and they embed thousands
seperators (in my case ','). When I try to do a query such as .. where
price = '25' ..
I am a bonehead. In stripping down my code for posting here, the problem
suddenly went away. I was building a temporary table and all this time I've
been overlooking the fact that my txtSWDesc1 field in the tmp table was set
to 255. My apologies to everyone. And thanks for trying to help me.
My mistake: I was setting the limit myself via an incorrect column
definition whilst creating a temporary table. I feel so stupid. Thanks for
trying to help me.
Paul
Kodrik [EMAIL PROTECTED] wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I use mysql_fetch array to retrieve
Problem solved. I was stupidly overlooking an incorrect column definition in
a temporary table. Everything's fine now. Thank you so much for trying to
help me, and please excuse my errors.
Paul
Richard Hutchins [EMAIL PROTECTED] wrote in message
Thanks for all your helpful suggestions. It turns out I was limiting the
array myself by setting a temporary table column definition to varchar(255).
I have been overlooking it all this time. I feel so stupid. Thanks again for
trying to help me.
Paul
Paul Burney [EMAIL PROTECTED] wrote in
Thanks,
I wasn't sure what kind of field to use, I'll give the timestamp a try and
set 0 as default.
Regards,
Steve.
-Original Message-
From: DL Neil [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 29, 2002 6:34 PM
To: Steve Bradwell; [EMAIL PROTECTED]; Php-Db (E-mail)
Subject: Re:
I am upgrading from PHP 4.1.2 to 4.2.2, and I cannot get the make
install to work. I am doing this on HP-UX 11.00, and I have tried the
suggestion of renaming the libphp4.sl files to libphp4.so, but I still get
failures. Below is the output of the make install before changing the
try the good ol' SETTYPE function to set the variable type from string to
numeric and visa versa...
http://www.php.net/manual/en/function.settype.php
Terry Romine wrote:
I've run into a sticky case where my query is failing (PHP4.x/MySQL).
I have a table where the price value is imported
[straying OT, but...]
Instead of incrementing to find the next row to count them, you dont have to
set the ID if it is auto increment. MySQL will do it for you (and i think it
might fill the holes too). Also, to get the num. of rows just do this -
$get_rows = mysql_query(SELECT * FROM
look up
HTTP_POST_VARS an related, it's used to retrieve the form data when
globals are off.
I would like to have the same page (test.php) have different text in it
depending on a database entry.
which is easy enough. but I want it to be on the fly. example list would be
created on the fly
Jay Blanchard wrote:
Howdy all!
Just wanted to remind everyone that sign-up for the PHP Meetup is still in
progress at http://php.meetup.com . At latest count there are 289 folks
signed up world-wide with the top 10 cities being;
Washington DC (9 members)
Toronto (9 members)
Leeds, UK
use the MD5 function and just take the 1st 10 chars or better yet, once you have
the MD5 value, use a wacky routine to take the first 10 odd position values...
since each time you run the function, it will always return the same value
(given the same string parameter...).
[EMAIL PROTECTED]
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