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• single page javascript send data AND pull data from mysql via php?

  - by David19801

  Hi, I am trying to make a dynamic form which retrives data. How can I use javascript to load a value from a mysql database? I understand that it must use php in some way, and I know how to query the database and assign the value to a php variable, but I have no idea what to do after that...any advice? the goal is to have someone enter their orderid say, then the datbase auto pulls down and enters their last invoice in the field below it after they click GO...

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• Is it alright to call len() in a loop's conditional statement?

  - by DormoTheNord

  In C, it is considered bad practice to call strlen like this: for ( i = 0; strlen ( str ) != foo; i++ ) { // stuff } The reason, of course, is that it is inefficient since it "counts" the characters in a string multiple times. However, in Python, I see code like this quite often: for i in range ( 0, len ( list ) ): # stuff Is this bad practice? Should I store the result of len() in a variable and use that?

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• SQLite user_version() expression

  - by ralf.w.

  how can I get user_version into an expression (for SELECT or WHERE) ? I would also appreciate any clue to how to save ANY global variable in SQLite. Does anyone know of such an extension (dll) ? BTW: I know that PRAGMA user_version; gives me the right answer, but I cannot use that inside a WHERE-clause !

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• Is there image phase correlation libraries available for Python?

  - by kamasudra

  A project that involves image processing, i.e. to calculate the angular shift of the same image when shifted by a medium of certain Refractive Index. We have to build an app that correlates the 2 images (phase/2D correlation?) and then plot using Chaco and Mayavi (2 libraries in Python). Is there any other existing template software (FOSS) that we can base our app on, or use it as a reference?

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• IS ResultSet thread safe

  - by javatraniee

  Is ResultSet Thread safe? My question arises because in this i have used a different statement for each query i have delsared a ResultSet as an local variable but it gives me a error of Operation not allowed after ResultSet is closed. But my statements are working as i'm using the statements in insert and delete query.I have commented the ResultSet part and have not got the error !! The source code of my program can be referd to , in my earlier Question .

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• Facebook Connect: Redirect to FB login page instead of popup

  - by AyKarsi

  I'm just starting of to get Facebook connect to work. One thing that really bugs me, is that when I click the FB login button, it opens up a popup. I would much more prefer to have the user redirected to FB, where he can login and be sent back to my site. (Just like openid login works here at SO) I can't find anything in the docs, although I have the feeling I'm not looking in the right place: http://developers.facebook.com/docs/reference/javascript/fb.api/

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• Regarding address operator C/C++

  - by iSight

  Hi, What does address operator mean. say in the method below. what should be passed in the method as parameter value of integer or the address of an integer variable. void func1(int&)// method declaration void func1(int& inNumber)//method definition { //some code }

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• Outlook Object Library for Visual Studio

  - by Ukodiak

  Our office is running two different versions of MS Office (2007 and 2010). Is there a way for me to integrate Outlook into a C# project and have it work for both versions of Outlook? I have added a reference to Microsoft Outlook 14.0 Object Library, but for users of Outlook 2007, do they require version 12.0 or will the newer version work?

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• How to dispose BackgroundWorkers the right way

  - by radbyx

  I've got a Windows Service that runs BackgroundWorker's, and I'm wondering if I'm doing the right thing when I stop my Windows Service. Is it enough to: Let the BackgroundWorker1_DoWork method complete (I have a while loop in it now, doing some tasks) Set the variable that holds the reference to the BackgroundWorker, to null Is there some kind of Dispose() method I need to call (In the same way the Timer class has Timer.Dispose();)?

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• ruby looping question

  - by jonepatr

  Hello! I want to make a loop on a variable that can be altered inside of the loop. first_var.sort.each do |first_id, first_value| second_var.sort.each do |second_id, second_value_value| difference = first_value - second_value if difference >= 0 second_var.delete(second_id) else second_var[second_id] += first_value if second_var[second_id] == 0 second_var.delete(second_id) end first_var.delete(first_id) end end end How do I do this, because this doesn't work?

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• Time not entered in mysql ? Java

  - by Nitesh Panchal

  Hello, I have a datetime field in mysql table and i am using JPA for persisting data but only date goes in database. Time always shows 00:00:00. What should i do? I am not doing any manipulation with Date. All i do is to assign new Date() to a variable and store it in database. What am i doing wrong?

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• Passing Activity Context to constructors to use internally - is this bad

  - by jax

  Is is bad practice to pass the Context to a constructor and save it as a private variable for internal use? The other option is to pass the Context as a parameter to methods that need it. Which is the better option? I have a feeling that passing to the constructor might result in memory leaks accidentally.

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• Php static variables across sessions

  - by pistacchio

  Hi, In ASP.NET if I declare a variable (or object) static (or if I make a singleton) I can have it persist across multiple sessions of multiple users (it it registered in a server scope) so that I don't have to initialize it at every request. Is there such a feature in PHP? Thanks

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• python 3 self class dict

  - by Jjang

  I am trying to create my own class of dictionary in python 3 which has a field of dict variable and setitem and getitem methods. Though, it doesnt work for some reason. Tried to look around but couldn't find the answer. class myDictionary: def __init(self): self.myDic={} def __setitem__(self, key, value): self.myDic[key]=value I'm getting: 'myDictionary' object has no attribute 'myDic' Any ideas? :)

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• Removing part of a string in PHP

  - by Nik

  I'm trying to take a query: SHOW TABLES; which will display a bunch of tables with the chat_ prefix. I want to remove the chat_ prefix from the string, format the variable (with a link), and display it. How is this accomplished?

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• Using C# to read/write from excel spreadsheet.

  - by Aaron

  Hi there, I need to make a program that writes some data to an excel spreadsheet. Something basic along the lines of First name, last name, phone number, e-mail per row with each category in its own column. I don't even know where to start. If someone could tell me which assemblies to reference and maybe point me to a website or a book that covers writing/reading data from an excel spreadsheet via a c# program that would be great. Many thanks.

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• Header redirect not working in PHP

  - by Sachindra

  This line isn't working for me: header("location:landing.php?id=md5($_REQUEST['user'])"); I need to pass the id variable. How do I do this?

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• Minimal example wanted showing texview incrementing a count on a timer?

  - by BobG

  In c it would be: while(1){ i++; printf("%d \r",i); } I assume the textview and the variable and the timer get created in oncreate, then there is a timer handler with an increment and a settext and a sleep? Seeing how to do this in androidese would really clarify things I think. Thanks.

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• How can I get relative path of the folders in my project? (java)

  - by masterkapu

  How can I get the relative path of the folders in my project (using code)? I created new folder in my project and I want its relative path so no matter where is the app the path will be correct. Maybe this can be useful: I trying to do it not inside any function just inside the class and I want to init with it a final variable. the app is android and the class is "extends Activity" thanks

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• SQL Server Text type v.s. varchar data type

  - by George2

  Hello everyone, I have variable length character and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL type, pros and cons in performance/footprint/function. thanks in advance, George

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• Can you execute multiple statements in with a If statement?

  - by Jack Null

  This is my function: (defun MyFunction(input) (let ((NEWNUM (find input num))) (if (find input num) //if this (setq num NEWNUM) (FUNCT2) //then execute both of these (list 'not found)))) //else output this So after the if statment I want to be able to execute (setq num NEWNUM) and (FUNCT2). One to set a new variable and then the other to call a function. Any ideas on how to do this?

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• hiding file in address bar

  - by michael

  hi, i've created a php pagination system, but i want to hide the _GET variable in the address bar. atm mine looks like this http://address.com/images.php?page=1 but i've seen a few site that have http://address.com/images/1/. just wondering how they go about this? can anyone point me in the right direction, cheers

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• Visual Studio 2008 - Is it possible for two projects to share common classes?

  - by John M

  In Visual Studio 2008 I know its possible to have one solution with two (or more) projects. Is it possible OR How is it possible for the projects to share common class files? For example - Project 1 has a log file handling class. Can Project 2 reference it? My hope is to increase code re-use and avoid two copies of the same thing that need to be maintained. The target is Winforms C# (3.5)

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• What is the the Ghost Design Pattern?

  - by David Relihan

  Someone recently asked a question about the Ghost Design Pattern - I have not seen this before. What is the Ghost Design Pattern and how is it implemented? I can only find snippets on the web in reference to it.

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• mod_rewrite - Don't get a second rule work

  - by poru

  I want to have a url like this: domain.com/css/site.css?test=234 Rule: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css?count=(.*)$ css.php?f=$1&test=$2 But I get every time a 404: Not found (site.css) If I have a rule like that it works, just without getting the $_GET-Variable: RewriteEngine On RewriteRule ^([a-z]+)/$ $1.php RewriteRule ^css/([a-zA-Z0-9]+).css$ css.php?f=$1

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