Re: [PHP] Re: PHP and MySQL SELECT COUNT (*)
Thanks all, I appreciate the follow ups and the help with the code. I'm still relatively new with this stuff, and never had any formal training, it's all just been learn as I go, and I have to learn fast as this project is relatively urgent to get completed. I plan on going through all of my code on all of these pages and cleaning it up at the end to make it more efficient, so I will use these tips to help do that. Thanks again to all who helped troubleshoot this. It is working great now and I think my bosses will be happy. =D Nathan Rixham [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] learn something new every day! cheers Micah :) Micah Gersten wrote: While it's true that '.' concatenates and ',' is a list separator, The comma is actually more appropriate in this instance since you are just outputting each piece. It saves the overhead of concatenation before output. Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com Nathan Rixham wrote: 6: vs ' when you use php will parse the enclosed string for variables, when you use ' it won't; so ' leads for faster code, and also encourages you to code strongly by closing strings and concatenating variables. Further it allows you to use valid html around attributes rather than the invalid ' 7: , vs . there is no vs :) to concatenate we use . (period) not , (comma) so for 6 7.. echo 'td' . $i['servername'] . '/td'; I'm going to stop there, hope it helps a little bit; and I won't go any further as half the fun is learning; so you finding out how to save time on queries and write your own db handlers etc is not my domain I reckons Regards nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL SELECT COUNT (*)
While it's true that '.' concatenates and ',' is a list separator, The comma is actually more appropriate in this instance since you are just outputting each piece. It saves the overhead of concatenation before output. Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com Nathan Rixham wrote: 6: vs ' when you use php will parse the enclosed string for variables, when you use ' it won't; so ' leads for faster code, and also encourages you to code strongly by closing strings and concatenating variables. Further it allows you to use valid html around attributes rather than the invalid ' 7: , vs . there is no vs :) to concatenate we use . (period) not , (comma) so for 6 7.. echo 'td' . $i['servername'] . '/td'; I'm going to stop there, hope it helps a little bit; and I won't go any further as half the fun is learning; so you finding out how to save time on queries and write your own db handlers etc is not my domain I reckons Regards nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL SELECT COUNT (*)
learn something new every day! cheers Micah :) Micah Gersten wrote: While it's true that '.' concatenates and ',' is a list separator, The comma is actually more appropriate in this instance since you are just outputting each piece. It saves the overhead of concatenation before output. Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com Nathan Rixham wrote: 6: vs ' when you use php will parse the enclosed string for variables, when you use ' it won't; so ' leads for faster code, and also encourages you to code strongly by closing strings and concatenating variables. Further it allows you to use valid html around attributes rather than the invalid ' 7: , vs . there is no vs :) to concatenate we use . (period) not , (comma) so for 6 7.. echo 'td' . $i['servername'] . '/td'; I'm going to stop there, hope it helps a little bit; and I won't go any further as half the fun is learning; so you finding out how to save time on queries and write your own db handlers etc is not my domain I reckons Regards nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL SELECT COUNT (*)
1: SQL in mysql queries /should/ use backticks (`) around database, table and column names, stop's them getting confused with variables or reserved words (like timestamp) and saves you future trouble :) .. which is a mysql-ism - no other database supports this. As soon as you need to use another db (regardless of whether it's this application or not), you're stuffed. For reserved word column names, you don't have much choice but don't do that in the first place ;) http://dev.mysql.com/doc/refman/5.0/en/reserved-words.html Other db's will have a similar list - though in most cases, if it's a function or sql keyword (eg 'table'), it'll be reserved in all. further, you'll be needing to use AS to turn COUNT(steps) into a nice name like stepcount Which is also a mysql-ism. Most other db's don't let you use aggregate aliases in an order by clause (I think because the sql standard says don't do that). -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-INSTALL] MySQL connector installation/upgrade problems
On 23. Oct 2007, at 20:33, Colin Guthrie wrote: If you compile PHP and it finds v3 of mysql that means that you must have the old development libraries for mysql 3 installed in some capacity (I believe). What is the output of: rpm -qa --nosignature --nodigest | grep -i mysql This should give some clues. $ rpm -qa --nosignature --nodigest | grep -i mysql MySQL-server-community-5.0.45-0.rhel3 mod_auth_mysql-20030510-2.ent MySQL-shared-compat-5.0.45-0.rhel3 MySQL-client-community-5.0.45-0.rhel3 mysql-bench-3.23.58-16.RHEL3.1 MySQL-python-0.9.1-6 libdbi-dbd-mysql-0.6.5-5 perl-DBD-MySQL-2.1021-4.EL3 qt-MySQL-3.1.2-17.RHEL3 php-mysql-4.3.2-43.ent MySQL-devel-community-5.0.45-0.rhel3 Now I'm even more confused, the 5.0.45 devel package *is* there. I would imagine (don't know) that PHP would use the mysql_config program to work out which mysql is installed and get the relevent cflags and linking options. For me this is provided by the MySQL-devel-community-5.0.27 package from MySQL... Is this definitely installed? $ mysql_config Usage: /usr/bin/mysql_config [OPTIONS] Options: --cflags [-I/usr/include/mysql -g -pipe -march=i386 - mcpu=i686] --include[-I/usr/include/mysql] --libs [-L/usr/lib/mysql -lmysqlclient -lz -lcrypt -lnsl -lm] --libs_r [-L/usr/lib/mysql -lmysqlclient_r -lz - lpthread -lcrypt -lnsl -lm -lpthread] --socket [/var/lib/mysql/mysql.sock] --port [3306] --version[5.0.45] --libmysqld-libs [-L/usr/lib/mysql -lmysqld -lz -lpthread - lcrypt -lnsl -lm -lpthread -lrt] Doing a simple ls -l on both /usr/lib/mysql and /usr/include/mysql shows me that all libraries in there are from Jul 5th, which is too old to be my recent MySQL install. So these seem to be the files that need updating. Which package will do that for me? Chrs, Dav -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-INSTALL] MySQL connector installation/upgrade problems
David Christopher Zentgraf wrote: On 23. Oct 2007, at 20:33, Colin Guthrie wrote: If you compile PHP and it finds v3 of mysql that means that you must have the old development libraries for mysql 3 installed in some capacity (I believe). What is the output of: rpm -qa --nosignature --nodigest | grep -i mysql This should give some clues. $ rpm -qa --nosignature --nodigest | grep -i mysql MySQL-server-community-5.0.45-0.rhel3 mod_auth_mysql-20030510-2.ent MySQL-shared-compat-5.0.45-0.rhel3 MySQL-client-community-5.0.45-0.rhel3 mysql-bench-3.23.58-16.RHEL3.1 MySQL-python-0.9.1-6 libdbi-dbd-mysql-0.6.5-5 perl-DBD-MySQL-2.1021-4.EL3 qt-MySQL-3.1.2-17.RHEL3 php-mysql-4.3.2-43.ent MySQL-devel-community-5.0.45-0.rhel3 Now I'm even more confused, the 5.0.45 devel package *is* there. Yeah that looks pretty OK to me (tho' not overly knowledgeable with Fedora/Centos packaging) I would imagine (don't know) that PHP would use the mysql_config program to work out which mysql is installed and get the relevent cflags and linking options. For me this is provided by the MySQL-devel-community-5.0.27 package from MySQL... Is this definitely installed? $ mysql_config Usage: /usr/bin/mysql_config [OPTIONS] Options: --cflags [-I/usr/include/mysql -g -pipe -march=i386 -mcpu=i686] --include[-I/usr/include/mysql] --libs [-L/usr/lib/mysql -lmysqlclient -lz -lcrypt -lnsl -lm] --libs_r [-L/usr/lib/mysql -lmysqlclient_r -lz -lpthread -lcrypt -lnsl -lm -lpthread] --socket [/var/lib/mysql/mysql.sock] --port [3306] --version[5.0.45] --libmysqld-libs [-L/usr/lib/mysql -lmysqld -lz -lpthread -lcrypt -lnsl -lm -lpthread -lrt] Doing a simple ls -l on both /usr/lib/mysql and /usr/include/mysql shows me that all libraries in there are from Jul 5th, which is too old to be my recent MySQL install. So these seem to be the files that need updating. Which package will do that for me? No, I reckon Jul 5th could be about right when was .45 released? I had it in my head it was august but Jul doesn't seem too far before that so entirely possible. Use rpm -qf filename to see which package owns which files. you can also use rpm -V pck to verify that the package has not be modified on disk. Does PHP 4 perhaps come with it's own mysql library in the source? Perhaps you have to pass an argument? Try using something like: --with-mysql=shared,/usr in the configure to PHP. That's certainly how I configure PHP5. The args for 4 may be different tho'. Col. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-INSTALL] MySQL connector installation/upgrade problems
On 23. Oct 2007, at 21:07, Colin Guthrie wrote: No, I reckon Jul 5th could be about right when was .45 released? I had it in my head it was august but Jul doesn't seem too far before that so entirely possible. Ah sorry, I was thinking about source installs. RPMs keep the original creation date I guess. Not overly used to that. Use rpm -qf filename to see which package owns which files. Probing two random files in include/mysql and and lib/mysql show they belong to MySQL-devel-community-5.0.45-0.rhel3. you can also use rpm -V pck to verify that the package has not be modified on disk. $ rpm -V MySQL-devel-community-5.0.45-0.rhel3 missing d /usr/share/man/man1/comp_err.1.gz missing d /usr/share/man/man1/mysql_config.1.gz I suppose this is, albeit not ideal, tolerable? Does PHP 4 perhaps come with it's own mysql library in the source? Perhaps you have to pass an argument? Yes, as of PHP4 the --with-mysql is on by default. I tried specifying --with-mysql-dir=/usr and also shared,/usr, but to no avail. Chrs, Dav -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-INSTALL] MySQL connector installation/upgrade problems
David Christopher Zentgraf wrote: $ rpm -V MySQL-devel-community-5.0.45-0.rhel3 missing d /usr/share/man/man1/comp_err.1.gz missing d /usr/share/man/man1/mysql_config.1.gz I suppose this is, albeit not ideal, tolerable? Yeah this is fine. Your system is probably not setup to install docs and therefore these files just didn't get installed. Does PHP 4 perhaps come with it's own mysql library in the source? Perhaps you have to pass an argument? Yes, as of PHP4 the --with-mysql is on by default. I tried specifying --with-mysql-dir=/usr and also shared,/usr, but to no avail. Sorry mate I'm out of ideas... Without tracing through the configure script to nail it down, I'm kinda stumped. Col -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: [PHP-INSTALL] MySQL connector installation/upgrade problems
David Christopher Zentgraf wrote: On 23. Oct 2007, at 17:22, Colin Guthrie wrote: Do rpm -qa --nosignature | grep -i mysql and see what old libraries you have lying around. Specifically look for the devel libraries/packages. Remove the 3.x versions via RPM and make sure you've installed the relevant -devel package from MySQL 5. You can also use the MySQL 5 -shared-compat package to replace the shared libraries needed by other apps in Fedora, although you may have to do an rpm -e --nodeps to get rid of the currently installed library prior to installing -shared-compat due to file conflicts. I always like to test that this has worked tho (typically testing one of the apps in the packages rpm moaned about when doing a normal rpm -e (sans --nodeps) or by trying to rpm -e the newly installed -shared-compat just to make sure it is providing the correct deps at least! I did install the shared-compat package (sorry, forgot to mention), which littered libmysqlclient.so.10 to .so.15 around my /usr/lib, and I guess that PHP is using .so.10 for some reason instead of .so.15 (or simply libmysqlclient.so, which is symlinked to .so.15). Are you saying that it's save to remove the old libs or the whole shared-compat package and simply install the current libs instead? I was thinking about it, but then again, these things are there for compatibility, so I hoped there was a way to explicitly tell PHP to use the latest version while leaving the others around. The .so file (without the .10 or .15) is just used for compile time linking, it's not used at runtime. No, the shared-compat is the correct one ot use here as some of the core Centos rpms may need a mysql v3 compatible client library. If you compile PHP and it finds v3 of mysql that means that you must have the old development libraries for mysql 3 installed in some capacity (I believe). What is the output of: rpm -qa --nosignature --nodigest | grep -i mysql This should give some clues. I would imagine (don't know) that PHP would use the mysql_config program to work out which mysql is installed and get the relevent cflags and linking options. For me this is provided by the MySQL-devel-community-5.0.27 package from MySQL... Is this definitely installed? Col -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP any Mysql connection- new b
You didnt mentioned where your problem is and what the error that you are
getting.
check in the line
mysql_select_db (userpass);
That you have the grant and other administrative privilages to the user and
the database
you have to operate on is mysql
mysql_select_db (mysql);
Anyhow note that PHP5 has released...i dont see any good reason why u r
still using php 3.
/sagar
- Original Message -
From: M. Sokolewicz [EMAIL PROTECTED]
To: php-general@lists.php.net
Sent: Saturday, January 08, 2005 9:55 PM
Subject: [PHP] Re: PHP any Mysql connection- new b
php 3.0???!
man, you seriously need to think about upgrading :| PHP 3 is seriously
outdated
- tul
Babu wrote:
Hi all,
I am using php 3.0 and mysql and win xp.
i want to add users to database through php page.
adduser.php
html
FORM METHOD=post ACTION=add.php
Real Name: INPUT TYPE=text MAXLENGTH=70 NAME=real_name SIZE=20Br
Username: INPUT TYPE=text MAXLENGTH=70 NAME=username SIZE=20Br
Password: Input Type=text Maxlength=70 Name=userpass Size=10Br
INPUT TYPE=submit VALUE=Add INPUT type=reset VALUE=Reset
Form/form
/tr/td/table/tr/td/table
/body
/html
when i enter the fileds and submit ,the action is not performed, instead
add.php file is opened.
add.php
?
$ID = uniqid(userID);
$db = mysql_connect(localhost,root,halfdinner);
mysql_select_db (userpass);
$result = mysql_query (INSERT INTO users (id, real_name, username,
password )
VALUES ('$ID', '$real_name', '$username', '$userpass') );
if(!$result)
echo bUser not added:/b , mysql_error();
exit;
}
if($result)
mysql_close($db);
print User b$username/b added sucessfully!;
}
else
print (Wrong Password);
}
?
is the problem due to mysql and php connection.i am using windows xp
with apache2.
i followed the steps said by someone in the previous thread.that is
adding libmysql.dll to system32 and so on. I cannot find php_mysql.dll in
php.ini.
can some one help
Thanks
babu
-
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Re: [PHP] Re: PHP 5 MySql 4.1 issue - can't connect to mysql.sock
Bingo. Many thanks. Barley wrote: If I run the script from a shell prompt as root, it outputs Yes. If I run as any other user, it outputs No. It also gives this error: Warning: mysqli_connect(): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13) Check permissions on /var/lib/mysql. From the sockets manpage: NOTES In the Linux implementation, sockets which are visible in the filesystem honour the permissions of the directory they are in. Their owner, group and their permissions can be changed. Creation of a new socket will fail if the process does not have write and search (execute) permission on the directory the socket is created in. Connecting to the socket object requires read/write permission. This behavior differs from many BSD-derived systems which ignore permissions for Unix sockets. Portable programs should not rely on this feature for security. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL date
Cesar Aracena wrote: I tried what both of you told me and I found very easy to use the datetime value under MySQL and then fetch it using strtotime() as fireball at sizzling dot com recommended at the User Contributed Notes of php.net's function.date.php page rather than using mktime() which can output incorrect dates. You can also use the MySQL function DATE_FORMAT() to format the MySQL timestamp to your liking. It is very similar to the PHP date() function. -- ---John Holmes... Amazon Wishlist: www.amazon.com/o/registry/3BEXC84AB3A5E/ php|architect: The Magazine for PHP Professionals www.phparch.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: php caches mysql connections to same host
See the new_link parameter option for mysql_connect. It should solve your problem. On the other hand, what you are doing is fine, I did it for my pool since I can't use the new_link option because I'm retaining compatibility back to PHP 4.1.2 Cheers, Rob. dorgon wrote: for better understanding: phpCode $conn1 = mysql_connect(localhost, user, pwd); mysql_select_db(database1, $conn1); $conn2 = mysql_connect(localhost, user, pwd); mysql_select_db(database2, $conn2); // select two diff. DBs echo $conn1.br; echo $conn2.br; /phpCode returns: Resource id #2 Resource id #2 BUT: $conn1 = mysql_connect(127.0.0.1, user, pwd); mysql_select_db(database1, $conn1); $conn2 = mysql_connect(localhost, user, pwd); mysql_select_db(database2, $conn2); // select two diff. DBs ...returns two different resource IDs (which I'd like to have). When using mysql_pconnect I'm always getting correctly different resource ids. /dorgon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- .-. | Worlds of Carnage - http://www.wocmud.org | :-: | Come visit a world of myth and legend where | | fantastical creatures come to life and the | | stuff of nightmares grasp for your soul.| `-' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL bug
@mysql_select_db(be); // this doesn't fail, because only the second
(UPDATE) query fails. The first query (SELECT) is done!
- Original Message -
From: Marek Kilimajer [EMAIL PROTECTED]
To: Nuno Lopes [EMAIL PROTECTED]
Cc: MySQL List [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, January 07, 2003 5:06 PM
Subject: Re: [PHP] Re: PHP and MySQL bug
@mysql_select_db(be); -- this failed
do echo mysql_error(); to see what went wrong
Nuno Lopes wrote:
I done a echo of Mysql_error and it returned:
'Nenhum banco de dados foi selecionado'
(I have the mysql server in portuguese, but the translation is something
like 'no db was selected')
- Original Message -
From: David Freeman [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 10:29 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this
query doesn't work
Personally, I'd call it bad programming practice to do a database update
and not check to see if it worked or not. In this case, how are you
determining that the query did not work? Are you manually checking the
database? You don't have anything in your code to check the status of
this query.
Perhaps this might get you somewhere:
$qid = @mysql_query(UPDATE d SET h = '$h' WHERE id = '$id');
if (isset($qid) mysql_affected_rows() == 1)
{
echo query executed;
} else {
echo query failed: . mysql_error();
}
At least this way you might get some indication of where the problem is.
CYA, Dave
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Re: [PHP] Re: PHP and MySQL bug
Doesn't you have any simpler answer??
Maybe installing the new version of mysql server - I have version 3.23.49 -
should do the trick
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: Nuno Lopes [EMAIL PROTECTED]; MySQL List [EMAIL PROTECTED]
Sent: Tuesday, January 07, 2003 4:12 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
Since nobody is jumping in to say it is some simple configuration/setting
personally my next step would be to shut down all services on the box that
aren't absolutely necessary and stop everything in the registry under run
and stop anything in the start folder of the start menu and run the same
tests. If no positive results I would uninstall php completely and clean
any reference in the registry of it and then install with everything still
shut down. Retest, if no progress do the same with mysql. These are
radical and time-consuming methods, but it seems as though it is broken.
If
you absolutely need this fixed fast you might resort to paying the
developers to give you a solution, although it may end up being what I
just
listed, or it could be some simple fix that we aren't aware of.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
-Original Message-
From: Nuno Lopes [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, January 07, 2003 4:31 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [PHP] Re: PHP and MySQL bug
I have the latest version of PHP (4.3.0) as module in apache 2.0.43 and
mysql 3.23.49.
Everything is working fine, except this.
With pconnect the error is the same!
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Monday, January 06, 2003 6:28 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
This definitely sounds like a buggy installation or there may be some
problem with the communication between the web server and the mysqld.
Is
the db on a different machine? Try using mysql_pconnect instead of
connect
just to see what result you get. I have read some unfavorable
statements
about using pconnect with a large number of hits so if it works you
should
read the comments about it on php.net. Do a search for mysql_pconnect.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
-Original Message-
From: Nuno Lopes [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 06, 2003 1:09 PM
To: MySQL List; [EMAIL PROTECTED]
Subject: [PHP] Re: PHP and MySQL bug
The problem is if I close the connection and reopen it the query is
done,
but if I remain with the same connection has the previous query, mysql
returns an error.
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 4:16 PM
Subject: Re:PHP and MySQL bug
Try replacing the following line...
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this query
doesn't
work
With...
$query = UPDATE d SET h='$h' WERE id='$id';
$queryr = mysql_query($query) or die(The sql statement does not
execute);
if(mysql_affected_rows() !== 1)
{
die(The sql statement is successfully run however either h did not
change or there is an internal error. Try executing the sql from the
command line to make sure it otherwise works.);
}
and see which is coming back.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
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Re: [PHP] Re: PHP and MySQL bug
I have the latest version of PHP (4.3.0) as module in apache 2.0.43 and
mysql 3.23.49.
Everything is working fine, except this.
With pconnect the error is the same!
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Monday, January 06, 2003 6:28 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
This definitely sounds like a buggy installation or there may be some
problem with the communication between the web server and the mysqld. Is
the db on a different machine? Try using mysql_pconnect instead of
connect
just to see what result you get. I have read some unfavorable statements
about using pconnect with a large number of hits so if it works you should
read the comments about it on php.net. Do a search for mysql_pconnect.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
-Original Message-
From: Nuno Lopes [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 06, 2003 1:09 PM
To: MySQL List; [EMAIL PROTECTED]
Subject: [PHP] Re: PHP and MySQL bug
The problem is if I close the connection and reopen it the query is done,
but if I remain with the same connection has the previous query, mysql
returns an error.
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 4:16 PM
Subject: Re:PHP and MySQL bug
Try replacing the following line...
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this query
doesn't
work
With...
$query = UPDATE d SET h='$h' WERE id='$id';
$queryr = mysql_query($query) or die(The sql statement does not
execute);
if(mysql_affected_rows() !== 1)
{
die(The sql statement is successfully run however either h did not
change or there is an internal error. Try executing the sql from the
command line to make sure it otherwise works.);
}
and see which is coming back.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
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Re: [PHP] Re: PHP and MySQL bug
@mysql_select_db(be); -- this failed
do echo mysql_error(); to see what went wrong
Nuno Lopes wrote:
I done a echo of Mysql_error and it returned:
'Nenhum banco de dados foi selecionado'
(I have the mysql server in portuguese, but the translation is something
like 'no db was selected')
- Original Message -
From: David Freeman [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 10:29 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this
query doesn't work
Personally, I'd call it bad programming practice to do a database update
and not check to see if it worked or not. In this case, how are you
determining that the query did not work? Are you manually checking the
database? You don't have anything in your code to check the status of
this query.
Perhaps this might get you somewhere:
$qid = @mysql_query(UPDATE d SET h = '$h' WHERE id = '$id');
if (isset($qid) mysql_affected_rows() == 1)
{
echo query executed;
} else {
echo query failed: . mysql_error();
}
At least this way you might get some indication of where the problem is.
CYA, Dave
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Re: [PHP] Re: PHP and MySQL bug
I'm using Windows 2000.
- Original Message -
From: Cleber [EMAIL PROTECTED]
To: Nuno Lopes [EMAIL PROTECTED]
Sent: Tuesday, January 07, 2003 10:23 AM
Subject: Re: [PHP] Re: PHP and MySQL bug
Try add to /etc/hosts the name and ip of DB is located
- Original Message -
From: Nuno Lopes [EMAIL PROTECTED]
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Tuesday, January 07, 2003 7:31 AM
Subject: Re: [PHP] Re: PHP and MySQL bug
I have the latest version of PHP (4.3.0) as module in apache 2.0.43 and
mysql 3.23.49.
Everything is working fine, except this.
With pconnect the error is the same!
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Monday, January 06, 2003 6:28 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
This definitely sounds like a buggy installation or there may be some
problem with the communication between the web server and the mysqld.
Is
the db on a different machine? Try using mysql_pconnect instead of
connect
just to see what result you get. I have read some unfavorable
statements
about using pconnect with a large number of hits so if it works you
should
read the comments about it on php.net. Do a search for
mysql_pconnect.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
-Original Message-
From: Nuno Lopes [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 06, 2003 1:09 PM
To: MySQL List; [EMAIL PROTECTED]
Subject: [PHP] Re: PHP and MySQL bug
The problem is if I close the connection and reopen it the query is
done,
but if I remain with the same connection has the previous query, mysql
returns an error.
- Original Message -
From: Larry Brown [EMAIL PROTECTED]
To: MySQL List [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 4:16 PM
Subject: Re:PHP and MySQL bug
Try replacing the following line...
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this query
doesn't
work
With...
$query = UPDATE d SET h='$h' WERE id='$id';
$queryr = mysql_query($query) or die(The sql statement does not
execute);
if(mysql_affected_rows() !== 1)
{
die(The sql statement is successfully run however either h did
not
change or there is an internal error. Try executing the sql from
the
command line to make sure it otherwise works.);
}
and see which is coming back.
Larry S. Brown
Dimension Networks, Inc.
(727) 723-8388
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Re: [PHP] Re: PHP and MySQL bug
I done a echo of Mysql_error and it returned:
'Nenhum banco de dados foi selecionado'
(I have the mysql server in portuguese, but the translation is something
like 'no db was selected')
- Original Message -
From: David Freeman [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, January 05, 2003 10:29 PM
Subject: RE: [PHP] Re: PHP and MySQL bug
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this
query doesn't work
Personally, I'd call it bad programming practice to do a database update
and not check to see if it worked or not. In this case, how are you
determining that the query did not work? Are you manually checking the
database? You don't have anything in your code to check the status of
this query.
Perhaps this might get you somewhere:
$qid = @mysql_query(UPDATE d SET h = '$h' WHERE id = '$id');
if (isset($qid) mysql_affected_rows() == 1)
{
echo query executed;
} else {
echo query failed: . mysql_error();
}
At least this way you might get some indication of where the problem is.
CYA, Dave
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RE: [PHP] Re: PHP and MySQL bug
@MYSQL_QUERY(UPDATE d SET h='$h' WHERE id='$id'); // this
query doesn't work
Personally, I'd call it bad programming practice to do a database update
and not check to see if it worked or not. In this case, how are you
determining that the query did not work? Are you manually checking the
database? You don't have anything in your code to check the status of
this query.
Perhaps this might get you somewhere:
$qid = @mysql_query(UPDATE d SET h = '$h' WHERE id = '$id');
if (isset($qid) mysql_affected_rows() == 1)
{
echo query executed;
} else {
echo query failed: . mysql_error();
}
At least this way you might get some indication of where the problem is.
CYA, Dave
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Re: [PHP] Re: PHP and MySQL bug
Personally I say get yourself a good simple dbconnect class and make life easy. Also if you ever change users, database name etc, you onlu have one place to replace it in your code. I wrote mine based on http://www.vtwebwizard.com/tutorials/mysql/ Take a look at it. Nice and simple. Mike *** REPLY SEPARATOR *** On 04/01/2003 at 1:09 PM OrangeHairedBoy wrote: You really should be using a $link variable...it's good habit: $link = mysql_connect(...); mysql_select_db( mydb , $link); $query = mysql_query( select... , $link ); $result = mysql_fetch_array($query); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: PHP and MySQL bug
Personally I think the problem lies somewhere between the chair and the keyboard (Sorry, couldn't resist) :-) *** REPLY SEPARATOR *** On 04/01/2003 at 4:58 PM Stefan Hinz, iConnect (Berlin) wrote: It doesn't work because of the /* Some code including ... */ part ;-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP and mySQL
Why can't you use one query?
UPDATE Book2 SET stock = stock - $quantity WHERE stock = $quantity AND
booktitle = '$booktitle'
---John Holmes...
-Original Message-
From: Matthew Ward [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 13, 2002 11:52 AM
To: [EMAIL PROTECTED]
Subject: [PHP] Re: PHP and mySQL
I presume that quantity is the number of books that the person has
ordered, and therefore it needs to be a variable (ie with a $ infront
of
it)
and its also best to do the calculation outside of the SQL statement
just
to
be sure it works, eg:
if ($submit){
if(isset($booktitle) isset($quantity)){
$retrievestock = mysql_query(SELECT stock FROM Book2 WHERE
booktitle
= '$booktitle');
while($getstock = mysql_fetch_array($retrievestock)) {
$stockamount = $getstock[stock];
}
$newamount = $stockamount - $quantity;
$sql = mysql_query(UPDATE Book2 SET stock = '$newamount' WHERE
booktitle= '$booktitle');
if(! $sql) { print(Could not update stock amount.);
} elseif(! $submit) {
print(Your order has not been placed.p);
}
City Colleges Of Chicago - Mannheim [EMAIL PROTECTED] wrote in
message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
I am a student working on a practicum problem. I have a mySQL
database
that
contains the books, their title, and how many are in stock. When a
person
orders one of the books, I want the stock to be adjusted by how
many,
quantity, that they chose when the submit button is clicked. The
scripts
are written in PHP.
Here is part of my code:
PThe book you are ordering:
?
echo $booktitle ;
?
PAdditional Message:br
textarea name=message cols=30 rows=3/textarea
/p
INPUT type=submit value=Send your order.
input type=hidden name=booktitle value=? print $booktitle; ?
/FORM
?php
$user = adminer;
$pass = hoosiers;
$db = Book Store1;
$local = jolinux;
$link = mysql_connect( $local, $user, $pass );
if (! $link )
die ( Couldn't open the database );
mysql_select_db( $db, $link )
or die ( Couldn't open the $db: .mysql_error() );
if ($submit){
if( $booktitle, 'quantity' ){
$sql = UPDATE Book2 SET stock ='$stock-quantity' WHERE
booktitle=$booktitle
AND quantity=quantity;
}
// $result = mysql_query($mysql);
}else if(!$submit){
echo Your order has not been placed.p;
}
?
/BODY
/HTML
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RE: [PHP] Re: PHP with MySQL
Just out of interest, what's the standard/best/triedtested method for
handling errors in relation to connecting to DB's? i.e. how to check that
the connection was a success, and if not then display why.
any pointers appreciated.
.b
-Original Message-
From: Mike Eheler [mailto:[EMAIL PROTECTED]]
Sent: 03 May 2002 02:28
To: [EMAIL PROTECTED]
Subject: [PHP] Re: PHP with MySQL
Typically it's done like:
$db = mysql_connect('localhost','username','password');
The MySQL database detects what host you're connecting from, and appends
that to your username. I'm not sure if it's possible to specify an
alternate host.
So if both PHP and MySQL are on the same machine, and you connect to the
MySQL server as 'username', MySQL will see you as 'username@localhost'.
Mike
Paras Mukadam wrote:
Hi Gurus,
one MySQL - PHP query : while granting permissions to particular user in
MySQL, the administrator has to give username@machine_address
!! Then how
can we connect to MySQL through PHP only by passing username
as one of the
arguments to mysql_connect() ?
Thanks.
Paras.
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RE: [PHP] Re: PHP with MySQL
John, presumably I can leave the error reporting on - but pipe it into a file if i wanted, rather than displaying on screen, and then redirect the user to another page? Not asking for code sample here, just whether I can do it or not :) /me goes to look up mysql_error() Cheers, .b -Original Message- From: Jon Haworth [mailto:[EMAIL PROTECTED]] Sent: 03 May 2002 11:34 To: '[EMAIL PROTECTED]'; PHP Subject: RE: [PHP] Re: PHP with MySQL Hi .ben, Just out of interest, what's the standard/best/tried tested method for handling errors in relation to connecting to DB's? i.e. how to check that the connection was a success, and if not then display why. Something like... $dbh = mysql_connect (foo, bar, baz) or die (mysql_error ()); has always worked well for me. When it comes to queries I generally tack the SQL on the end of the error, like this: $q = mysql_query ($sql, $dbh) or die (mysql_error (). brb. $sql. /b); Obviously it's a good idea to turn this error reporting off on a production site, otherwise you risk exposing details of your database structure. HTH Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP with MySQL
Hi Ben, John, presumably I can leave the error reporting on - but pipe it into a file if i wanted, rather than displaying on screen, and then redirect the user to another page? Of course you can - I generally have my pages send me email when they throw an error, but that's because I'm really lazy and I can't be bothered to go and check log files all the time g It's just not a stunning idea to display an error messages that give away out any information you could hold back - one of the starting points for an attacker is to try and mess up your query strings, and if you're merrily telling them exactly what the problem is, you're helping them out :-) Cheers Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP with MySQL
Oh, i agree entirely. Ok, i'll look into the logging/mailing solution - something i've been doing in ASP for years but am new to in PHP. Cheers, .b -Original Message- From: Jon Haworth [mailto:[EMAIL PROTECTED]] Sent: 03 May 2002 11:57 To: '[EMAIL PROTECTED]'; PHP Subject: RE: [PHP] Re: PHP with MySQL Hi Ben, John, presumably I can leave the error reporting on - but pipe it into a file if i wanted, rather than displaying on screen, and then redirect the user to another page? Of course you can - I generally have my pages send me email when they throw an error, but that's because I'm really lazy and I can't be bothered to go and check log files all the time g It's just not a stunning idea to display an error messages that give away out any information you could hold back - one of the starting points for an attacker is to try and mess up your query strings, and if you're merrily telling them exactly what the problem is, you're helping them out :-) Cheers Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP with MySQL
There's a whole section in the manual on it. There is a log_error() or errorlog() function that'll write your errors to a file of your choosing. ---John Holmes... -Original Message- From: .ben [mailto:[EMAIL PROTECTED]] Sent: Friday, May 03, 2002 4:04 AM To: PHP Subject: RE: [PHP] Re: PHP with MySQL Oh, i agree entirely. Ok, i'll look into the logging/mailing solution - something i've been doing in ASP for years but am new to in PHP. Cheers, .b -Original Message- From: Jon Haworth [mailto:[EMAIL PROTECTED]] Sent: 03 May 2002 11:57 To: '[EMAIL PROTECTED]'; PHP Subject: RE: [PHP] Re: PHP with MySQL Hi Ben, John, presumably I can leave the error reporting on - but pipe it into a file if i wanted, rather than displaying on screen, and then redirect the user to another page? Of course you can - I generally have my pages send me email when they throw an error, but that's because I'm really lazy and I can't be bothered to go and check log files all the time g It's just not a stunning idea to display an error messages that give away out any information you could hold back - one of the starting points for an attacker is to try and mess up your query strings, and if you're merrily telling them exactly what the problem is, you're helping them out :-) Cheers Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP with MySQL
Thanks John. -Original Message- From: John Holmes [mailto:[EMAIL PROTECTED]] Sent: 03 May 2002 16:29 To: [EMAIL PROTECTED]; 'PHP' Subject: RE: [PHP] Re: PHP with MySQL There's a whole section in the manual on it. There is a log_error() or errorlog() function that'll write your errors to a file of your choosing. ---John Holmes... -Original Message- From: .ben [mailto:[EMAIL PROTECTED]] Sent: Friday, May 03, 2002 4:04 AM To: PHP Subject: RE: [PHP] Re: PHP with MySQL Oh, i agree entirely. Ok, i'll look into the logging/mailing solution - something i've been doing in ASP for years but am new to in PHP. Cheers, .b -Original Message- From: Jon Haworth [mailto:[EMAIL PROTECTED]] Sent: 03 May 2002 11:57 To: '[EMAIL PROTECTED]'; PHP Subject: RE: [PHP] Re: PHP with MySQL Hi Ben, John, presumably I can leave the error reporting on - but pipe it into a file if i wanted, rather than displaying on screen, and then redirect the user to another page? Of course you can - I generally have my pages send me email when they throw an error, but that's because I'm really lazy and I can't be bothered to go and check log files all the time g It's just not a stunning idea to display an error messages that give away out any information you could hold back - one of the starting points for an attacker is to try and mess up your query strings, and if you're merrily telling them exactly what the problem is, you're helping them out :-) Cheers Jon -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Re: PHP and mySQL
Max,
PHP.net says:
Calls to mysql_result() should not be mixed with calls to other functions
that deal with the result set.
I would use mysql_fetch_array which they say is MUCH faster, example of how
you could use it:
?php
mysql_connect($host, $user, $password);
mysql_select_db(database);
$sqlinfo = SELECT username, COUNT(username) as count FROM usertable WHERE
username='me' GROUP BY username;
$number_of_rows=mysql_num_rows($sqlinfo)
if($number_of_rows != '0')
{
while ($row = mysql_fetch_array($sqlinfo))
{
echo count: .$row[count].br\n;
echo username: .$row[username].br\n;
}
}
mysql_free_result($result);
?
-Original Message-
From: David Robley [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, March 05, 2002 8:29 PM
To: [EMAIL PROTECTED]
Subject: [PHP] Re: PHP and mySQL
In article 180f01c1c403$2ac62820$[EMAIL PROTECTED],
[EMAIL PROTECTED] says...
I have a little problem when trying to count the number of results
returned
in a mysql query. I was using mysql_num_rows() to do it with no problems,
but this isn't as quick as using mySQL's COUNT(*), or so I have been told
so
I swtiched. Here's a snipit of the code...
$sqlinfo = SELECT username, COUNT(username) as count FROM usertable WHERE
username='me' GROUP BY username;
$sqlresult = mysql_query($sqlinfo)
or die(mysql_error());
$count = mysql_result($sqlresult,0,count);
if ($count = 0) {
FAILED
} else {
while ($row = mysql_fetch_array($sqlresult)) {
$username = $row['username'];
}
}
The count value is set correctly but: when the while() loop is
executed...no values are set (there are a lot more, but I shortened it for
spaces sake). So, $username is null. If I remove the $count line, it
worksany suggestions?
Max
Assuming that your username is unique, I would expect that you would only
get one row returned from that query? In which case much of your SQL is
redundant.
Anyhow, your $count line reads the first row of the result, then sets the
pointer to the next row in the result set - if this is empty (ie only one
row retrieved) then you will get a null result for your while loop as
there are no more results to display. Try using mysql_data_seek to return
the pointer to row 0 before your while loop.
--
David Robley
Temporary Kiwi!
Quod subigo farinam
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