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• mysql innodb:innodb_flush_method

  - by Daniel

  in the following link http://dev.mysql.com/doc/refman/5.1/en/innodb-parameters.html#sysvar_innodb_flush_method it says:Different values of this variable can have a marked effect on InnoDB performance. For example, on some systems where InnoDB data and log files are located on a SAN, it has been found that setting innodb_flush_method to O_DIRECT can degrade performance of simple SELECT statements by a factor of three. Why O_DIRECT could slow down the select statement?

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• ActionScript Calling Private Functions By Changing Public Variables?

  - by TheDarkIn1978

  i've never tried to do this before, so my head a swimming a bit. i'd like to have a public boolean called enabled in myClass custom class. if it's called to be changed, how do i trigger a function from the change? should i add an Event.CHANGE event listener to my variable? can i do that? or is there a more standard way?

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• JQuery Plugin - Record Time Spent on Webpage

  - by user269799

  I want to record time spent on webpages. Is there an appropriate JQuery plugin written for this? I could then record the value of the timer in a variable and insert to a database. JJH

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• WPF WrapPanel - all items should have the same width

  - by John

  I have a ListBox whose ItemsPanel I have replaces with a WrapPanel. The WrapPanel now hosts the databound ListboxItems. Each item has a variable sized text in it, giving each item a different width. However, I want the width to be constant so that all items have the same width as the item with the longest text. Is that possible?

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• Delete record in MySQL with php targeting auto_incremented int?

  - by Chris_45

  Why doesnt this delete work to delete the whole record: $query = 'DELETE FROM tblEvents WHERE index = $_GET["id"]'; $result = mysql_query($query, $db) or die(mysql_error($db)); Where index is variable of type int, auto_incremented in MySQL?

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• How to post data in PHP using file_get_contents?

  - by Paras Chopra

  I am using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header. Now the problem is that some of the URLs need some data to be posted to the URL (for example, login pages). How do I do that? I realize using stream_context I may be able to do that but I am not entirely clear. Thanks.

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• How do you access the main obj from obj.foo.bar in javascript?

  - by bschaeffer

  Objects in javascript throw me for a loop! In this set up... var obj = { someVar: "my awesome variable", foo: { bar: function(){ alert(this.someVar); } } }; How would I get obj.foo.bar to correctly alert the value of someVar?

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• Accessing any structs members at run-time.

  - by jmgunn

  Is it possible to get access to an individual member of a struct or class without knowing the names of its member variables? I would like to do an "offsetof(struct, tyname)" without having the struct name or member variable name hard coded amoungst other things. thanks.

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• how to substitute in html

  - by kshama

  hi , I had a simple doubt. In the href below i want to pass the value of content_id which is a variable ,not content_id as string. <a href="http://localhost:3000/welcome/details?id=content_id">details</a> How do i do it? Thanks in advance

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• PayPal debit VISA automatically?

  - by Mark

  If I have a Visa card number saved in my database, is there a way I can charge that Visa automatically through the PayPal API without the user having to enter anything? We want to keep this site as easy and hassle-free to use as possible. It would be a variable amount, based on how they use the site. (Don't worry, proper disclaimers will be in place, and the user will be notified)

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• How would someone go about implemention mathematical formulas in java?

  - by Mohit Deshpande

  What I mean is like have to user input a string with multiple variables and get the value of those variable. Like a simple quadratic formula: x^2 + 5x + 10. The user would then enter that and then the program would solve for x. I will be using the BeanShell Interpreter class to interpret the string as an equation. But how would I solve for x?

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• PHP+MySQL Update TimeStamp and get NOW() back

  - by Ben

  Is it possible to merge these two mysql queries into one? I want to get NOW() returned to a php variable. mysql_query('INSERT INTO translate (IDRef, RefType, Lang, Text, LastChangeTS) VALUES ('.$id.', \''.$reftype.'\', \''.$lang.'\', \''.$text.'\', NOW()) ON DUPLICATE KEY UPDATE text = \''.$text.'\', LastChangeTS = NOW()'); mysql_query('SELECT LastChangeTS FROM translate WHERE IDRef = '.$id.' AND RefType = \''.$reftype.'\' AND Lang = \''.$lang.'\'');

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• What does static and IOException mean?

  - by Brian

  I just had a test on java and we had to give the definition of 1) Static: 2) IOExcepion: What I said for static was...a static method is used to define a method as a class method. And I got it wrong so I asked my teacher and he said he wants the actually definition of static not a static method, class or variable just static. Can someone tell me the definition of this and for IOException please Thanks.

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• Please provide scenarios/conditions those fail during deserialization when a class & serialized obje

  - by learner

  Please provide scenarios/conditions those fail during deserialization when a class & serialized object have same serialVersionUID? I'm looking scenarios like following 1) If a data type of an instance variable is changed then deserialization will fail Could you please provide all such scenarios. I couldn't find such scenarios list anywhere in the internet. Thanks

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• How to read unlimited characters in c

  - by prithviraj

  Hi all, how to read unlimited characters in to a char* variable without specifying the size. For ex: I want to read the address of an employee it may take multilines also. Thanks in advance.

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• R: how to construct a mathematical expression from a character object?

  - by Rob Hyndman

  In R, I'm wanting to create a graph with x axis label expression(varname), where varname is a character object. For example: varname <- "beta[1]" hist(rnorm(20),xlab=expression(varname)) But that gives me a graph with xlab="varname" rather than xlab=expression(beta[1]). How to I convince expression() to evaluate the variable?

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• HttpResponseRedirect question

  - by Hulk

  Cant we send a dictionary variable when using HttpResponseRedirect render_to_response('edited/display.html',context_instance=RequestContext(request,{'newlist': newlist})) //How can the dictionary and the request sent back again //sumthing like this return HttpResponseRedirect('edited/display.html',context_instance=RequestContext(request,{'newlist': newlist}))

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• How would someone implement mathematical formulae in java?

  - by Mohit Deshpande

  What I mean is like have to user input a string with multiple variables and get the value of those variable. Like a simple quadratic formula: x^2 + 5x + 10. Or in java: (Math.pow(x,2)) + (x * 5) + 10The user would then enter that and then the program would solve for x. I will be using the BeanShell Interpreter class to interpret the string as an equation. But how would I solve for x?

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• Timezone issue in Drupal

  - by cinqoTimo

  I have a drupal site where all the views and times associated with nodes are off by 1-hour. -I checked the server time, and it is correct -I checked that my admin user (uid 1) had a zero in the timezone offset -Checked all CCK date fields in question to make sure there was no timezone handling Yet still when the admin user views nodes, there is a 1-hour offset. Is there some sort of system variable - or something else I haven't checked....?

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• How to load MS Word document in C# (.NET)?

  - by Skuta

  Hi, How do I load MS Word document (.doc and .docx) to memory (variable) without doing this?: wordApp.Documents.Open I don't want to open MS Word, I just want that text inside. You gave me answer for DOCX, but what about DOC? I want free and high performance solution - not to open 12.000 instances of Word to process all of them. :( Aspose is commercial product, and 900$ is a way too much for what I do.

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• Regexp for extracting data in parenthesis and commas

  - by anders

  So, i have this : "( ABC,2004 )" And I would need to extract ABC in a variable and 2004 in another. So what I have for now is this: In: re.compile(r'([^)]*,').findall("( ABC,2004 )") Out: ['( ABC,']

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• What does (void**) mean in C?

  - by numerical25

  I would look this up, but honestly I wouldn't know where to start because I don't know what it is called. I've seen variables passed to functions like this: myFunction((void**)&variable); Which confuses the heck out of me cause all of those look familiar to me; I've just never seen them put together like that before. What does it mean? I am a newb so the less jargon, the better, thanks!

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• Using pydev with Eclipse on OSX

  - by Sunit

  I setup PyDev with this path for the python interpreter /System/Library/Frameworks/Python.framework/Versions/2.5/Python since the one under /usr/bin were alias and Eclipse won't select it. I can run my python script now but cannot run the shell as an external tool. The message I get is variable references empty selection ${resource_loc} Same if I use {container_loc} Any thoughts ? Sunit

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• Get main article image with PHP

  - by PaulAdamDavis

  Hello! I'd like to get the main image for an article, much like Facebook does when you post a link (but without the choosing image part). The data we have to work with is the whole pages HTML as a variable. The page & URL will be different for every time this function runs. Are there any libraries or classes that are particularly good at getting the main body of content, much like Instapaper that would be of any help?

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• C++ character to int

  - by Vit

  Hi, what happens when you cin letter to int variable? I tried simple code to add 2 int numbers, first read them, than add them. But when I enter letter, it just fails and prints tons of numbers to screen. But what causes this error? I mean, I expected it to load and use ASCII code of that letter.

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