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• Why use mysql_real_escape_string, doesn't addslashes prevent everything?

  - by Webnet

  I was looking through the docs and stumbled onto mysql_real_escape_string() and I'm not understanding why it's useful when you can just addslashes(). Can someone show me a scenario as to why it's useful? I'm also curious why it requires a database connection.... that seems like a lot of overhead.

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• jQuery Horizontal scroll with unknown width of items

  - by Gorm Casper

  I am creating a gallery using jQuery which displays pictures horizontally, with a "left" and "right" button below, that scrolls the row of images. There are plenty of tutorials and plugins for this. The problem for me though, is that 1) I don't know the width of the images. And 2) I need the item I scroll to, to be centered. How do I go about this? Thanks a lot, Gorm

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• In need of a good MATLAB class tutorial

  - by rlbond

  I'm having a lot of trouble trying to figure out how to use classes in MATLAB. I'm very familiar with C++ and Python but I just can't figure anything out about how to define classes in MATLAB. Does anyone know a very good resource with lots of examples? The official documentation leaves much to be desired.

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• What are the suggested alternatives for Class<T>.isAssignableFrom(Class<?> cls)?

  - by Wing C. Chen

  Currently I am doing the profiling to a piece of code. During the profiling, I discovered that this very method call, Class<T>.isAssignableFrom(Class<?> cls) takes up to quite amount of the entire time. Because this is a method from reflection, it takes a lot of time compared to normal keywords or method calls. I am wondering if there are some good alternatives for this method calls?

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• Div / CSS / ZIndex - how to overlap pictures?

  - by Kovu

  Hi, I have 5 pictures, and I will overlap these 5. I read a lot of HowTo CSS / Div and overlapping, but I didn't get it at all. I have a normal 500 width div container as "content" filler. Into this div, I will have 5 pictures that are overlapping each other. I try all "position:", but nothing fills what I want.

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• send 1000 mail or more with PHP

  - by cosy

  How can i send 1 mail to 1000 person with php, and not to wait 10 hours? It's possible to set an cronjob from php? sorry my English! and thanks a lot

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• How to set session timeout dinamically in java web applications?

  - by Jonathas Carrijo

  Hi, I need to give my user a web interface to change the session timeout interval. So, each installation of the application might have different timeouts for their sessions, but they web.xml cannot be different. Is there a way to set the session timeout programatically, so that I could use, say, ServletContextListener.contextInitialized() to read the configured interval and set it upon application startup? Thanks a lot.

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• Java Optimization String vs Char Arrays

  - by ThePinkPoo

  In a program I am writing I am doing a lot of string manipulation. I am trying to increase performance and am wondering if using char arrays would show a decent performance increase. Any suggestions?

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• Python matching some characters into a string

  - by roaksoax

  Hi All I'm trying to extract/match data from a string using regular expression but I don't seem to get it. I wan't to extract the highlighted characters from the following string: /xubuntu/daily/current/lucid-alternate-**i386**.iso This should also work in case of: /xubuntu/daily/current/lucid-alternate-**amd64**.iso Thanks a lot for your help.

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• PHP OOP: Chainable objects?

  - by Industrial

  Hi everybody, I have tried to find a good introduction on chainable OOP objects in PHP, but without any good result yet. How can something like this be done? $this->className->add('1','value'); $this->className->type('string'); $this->classname->doStuff(); Or even: $this->className->add('1','value')->type('string')->doStuff(); Thanks a lot!

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• rails 3 how to automatically post user_id in column of comments

  - by user568502

  hi, im totally new to rails. here my question: i made an app with articles and comments and use devise for authentication sadly im only able to post 1 hyperlink so this is the middle part of my post with the files at gist: https://gist.github.com/771366 the article_id is pre selected in the comments/_form - but the user_id isnt. i googled a lot, tried value = session[:user_id] and others, but nothing worked would be great if someone could tell me how it works ^^ thx

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• SE friendly URLs appache code snippets

  - by Dan

  I want example.com/23-45 be transformed to example.com?id=23-45 Could you please post the code I should add to .htaccess file to make this work (Is this everything I should do to make this work - add a piece of code to .htaccess file ???) Thanks a lot!

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• Php + mysql transactions examples

  - by Donator

  I really haven't found normal example of php file where mysql transactions are being used. Can you show me simple example of that? And one more question. I've already created a lot of programming and didn't use transaction, maybe I can put any php function or smth to header.php that if one mysql_query fails, then others too? Thank you.

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• Update Database from Entity Data Model without loosing content

  - by user293818

  Hi there, my Topic should tell you already what i am asking for. Is there any way to update my database from an entity data model without lossing the inserted content? I can't be bothered copying all this stuff everytime i make a change. Thanks a lot. Chris

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• Including a local file but not making it run with the main script?

  - by Rob

  I have one script that loads very quickly, but I have another script that I want to run with that script, but that scripts processes a LOT slower. The second script doesn't need to output anything to the user, it only needs to run. Is there a way I can include it locally, without making the user have to wait for it to load?

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• Background processing in Rails

  - by Shreyas Satish

  A certain function in my controller takes a lot of time to process (heavy db work) . So when my user clicks on "submit" on the form he has to wait for the process to complete which is quite long. Is there any way that on "submitting", the user is redirected to the next view without any delay while the processing continues in the back-end without making the user wait ? Thanks & Cheers !

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• C++: type Length from float

  - by anon

  This is kinda like my earlier question: http://stackoverflow.com/questions/2451175/c-vector3-type-wall Except, now, I want to do this to a builtin rather then a user created type. So I want a type "Length" that behaves just like float -- except I'm going to make it's constructor explicit, so I have to explicitly construct Length objects (rather than have random conversions flying around). Basically, I'm going into the type-a-lot camp.

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• Is a primary key automatically an index?

  - by Lieven Cardoen

  If I run Profiler, then it suggests a lot of indexes like this one CREATE CLUSTERED INDEX [_dta_index_Users_c_9_292912115__K1] ON [dbo].[Users] ( [UserId] ASC )WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF) ON [PRIMARY] UserId is the primary key of the table Users. Is this index better than the one already in the table: ALTER TABLE [dbo].[Users] ADD CONSTRAINT [PK_Users] PRIMARY KEY NONCLUSTERED ( [UserId] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

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• ASP.NET MVC URL/Routing question

  - by Hobbes

  Hello! I am an MVC newbie. I'm trying to get my URLs to look like this: /Corporate/Users/Edit/1 /Corporate/Stores/Edit/17 /Corporate/Contacts/Edit/17 /Store/Contacts/Create /Store/Products/Edit/29 Pretty much like plain-vanilla urls, except with a user type at the front. I'm running into a lot of problems with duplicate controller names, etc. Is there a simple way to do this? I looked briefly at Areas, but this seemed way to complicated.

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• Remote Control Software with queue for multiple users?

  - by jakob

  Is there a remote control software or a http-server available, which has a queue implemented, so that one after another client has the chance to control the screen on the host? Thanks a lot

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• How can I send a file via wifi between two pocket PCs?

  - by Mike Redford

  Hi guys I have two Pocket PCs and I want write an application that be able to send a file via Wi-Fi , as you know the Pocket PC's OS is Windows-mobile ; 1)Can I use J2SE ?(Because windows-mobile) or I must write J2ME Application? 2)please kindly advice me, with a sample source code about that. Thanks a lot ...

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• Null reference for first memory address between 0 - 65535

  - by Terry

  I would like to understand a bit more about memory and I was unable to find it from Google, please forgive me if this is silly question. How come the following code, accessing memory address 0(and up to 65535) in C# would throw NullReferenceException byte* pointer = (byte*)0; byte test = *pointer; Thanks a lot in advance!

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• how to find what isbns are in use

  - by Richard

  I am trying to find a list of what ISBNs are in use. I guess I could scrape a website like Amazon but that would waste a lot of bandwidth. Is there a better (free) way?

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• Is is faster to filter and get data or filter then get data ?

  - by remi bourgarel

  Hi I have this kind of request : SELECT myTable.ID, myTable.Adress, -- 20 more columns of all kind of type FROM myTable WHERE EXISTS(SELECT * FROM myLink WHERE myLink.FID = myTable.ID and myLink.FID2 = 666) myLink has a lot of rows. Do you think it's faster to do like this : SELECT myLink.FID INTO @result FROM myLink WHERE myLink.FID2 = 666 UPDATE @result SET Adress = myTable.Adress, -- 20 more columns of all kind of type FROM myTable WHERE myTable.ID = @result.ID

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• Codeigniter: user defined helper function does not load.

  - by cbrandolino

  Hi everybody. I made a custom helper extending the system string_helper.php. I placed it in my /application/helpers folder, called MY_string_helper.php as required, unit-tested its functions. Now, when I try to call one of its functions from a model, it does not work. The functions in the default string helper work, instead. It looks like my extension is not loaded for some reasons. Thanks a lot, and happy holidays.

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