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• xdebug profiler output strange results

  - by nic28

  I'm using xdebug to profile some PHP code on Windows and using WinCacheGrind/Webgrind to analyse the output, but I'm getting some strange results. Specifically, the total cumulative time for a single method is greater than 100%! How is it possible that more time is spent executing this function's code and all the functions that it calls than the total time it took to execute the whole script? What am I missing here?

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• Scope of const char*

  - by Neeraj

  Consider this code: const char* someFun() { // ... some stuff return "Some text!!" } int main() { { // Block: A const char* retStr = someFun(); // use retStr } } My question is in the function sumFun() where is "some Text!!", stored (i think may be in some static area in ROM) and what will be its scope? Will the memory pointed by retStr be occupied throughout the program or be released once the block A exits? -- Thanks

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• How can I strip invalid XML characters from strings in Perl?

  - by AndrewR

  I'm looking for what the standard, approved, and robust way of stripping invalid characters from strings before writing them to an XML file. I'm talking here about blocks of text containing backspace (^H) and formfeed characters etc. There has to be a standard library/module function for doing this but I can't find it. I'm using XML::LibXML to build a DOM tree that I then serialize to disk.

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• Unset an array element inside a foreach loop

  - by Summer

  I'm accessing an array by reference inside a foreach loop, but the unset() function doesn't seem to be working: foreach ( $this->result['list'] as &$row ) { if ($this_row_is_boring) { unset($row); } } print_r($this->result['list']); // Includes rows I thought I unset Ideas? Thanks!

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• strict string to int[long]

  - by baskin

  Do we have a standard way of converting a char* to int (or long) in a strict way, i.e. we should get proper result only if all characters are digits and can fit in an int (or long) -- some way by using strtol etc.. ? Thus "sbc45", "4590k", " 56", "56 ", should be all invalid using that function.

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• how to access char*** from dll import in C#

  - by mavrick

  I have a function in win32 dll with signature as: void func1(int a, char*** outData) int a -- input parameter char*** outData -- output parameter - pointer to array of char strings Any idea how to access this in C# using dll import & what should be the signature.

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• is there a way to inject privileged methods after an object is constructed?

  - by patrickgamer

  I'm trying to write fully automated unit tests in JavaScript and I'm looking for a way to read some private variables in various JS functions. I thought I recalled a way to inject privileged members into a function/object (and found an overwhelming occurrence of "no such thing as private in JS") and yet I can't find any resources indicating how. I'm trying to read through the properties of .prototype but if there's a way, someone out here would know where to direct me faster than I'd find on my own. Thanks

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• Show information over image on rollover

  - by Chris

  I want to be able to show information (HTML basically) over an image when the mouse rolls over the image... I know there is a .hover() jQuery function but am unsure how to use it to get the desired effect. Ideally when a user hovers over an image it would "grey out" (e.g. layer of 50% opacity black) with some HTML like a title etc etc. Can someone point me in the right direction or provide sample code Thanks

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• thresholding to distinguish small features in noisy data

  - by Daniel

  Hi, I'm wondering what type of threshold would work well for distinguishing features that are very small (small in the xy sense) in comparison with the full spread, if that makes sense. The graythresh() function in Matlab that uses the Otsu method doesn't work too well for my data. Otsu is a clustering method where I think the # of pixels should be similar in each class, which is not the case for me so when I employ it I get a threshold that is way too small and falls well within a lot of the background noise that remains even after filtering.

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• How do I call functions inside c++ dll from lua?

  - by Brian T Hannan

  I have a dll written in C++ that is legacy code and cannot modify the source code. I want to be able to call some of the functions inside of the dll from lua. For example, I'd like to do something like this: -- My Lua File include(myCppDll.dll) function callCppFunctionFromDll() local result = myCppFunctionFromDll(arg1, arg2) --Do something with result here end Is something like this possible?

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• Expanding a Cassandra cluster with one additional node: what ports need to be open?

  - by knorv

  Assume a Cassandra cluster with hosts A and B. This cluster shall now be extended with another host C. Assume that Cis on a firewalled network were all packets are dropped by default. Which ports and protocols must be opened up between C <> A and C <> B for the new node C to function properly?

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• get to post google map gdownloadurl

  - by sam

  hi all, this is the javascript. var url = "http://google.com/gmap.jsp?uid="+userid+"&lat="+lat; GDownloadUrl(url,function(doc){}); how to change from get to post? any idea? thanks

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• Checking if an overridden parent method exists before calling it

  - by Nate Wagar

  How would I go about ensuring that the overridden parent method exists before I call it? I've tried this: public function func() { if (function_exists('parent::func')) { return parent::func(); } } However the function_exists never evaluates to true.

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• php add thousandseperator without adjusting comma

  - by bobwah

  I'm looking for a way to use the php number_format function or something similar that will add the thousand seperator but will leave any decimal part of the number intatct without and formatting of this. For example: 39845.25843 = 39,845.25843 347346.8 = 347,346.8 1000000 = 1,000,000 Thanks

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• PHP Get the last insert id from ODBC connection.

  - by praveenjayapal

  How do I get the last insert id from a database using a ODBC connection? I'm looking for a solution similar to the mysql_insert_id() function.

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• Expected Expression

  - by coffeeaddict

  I cannot figure out what I did or did not do here syntactically to cause this error. I don't see what's missing: function ShowWaitMessage(button) { var isValid; if (buttonSelected()) { showWaitMessage(button, "showMessage1"); isValid = true; } else { Page_ClientValidate(); if (Page_IsValid) { showWaitMessage(button, "showMessage2"); isValid = true; } } return isValid; }

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• json retrival failed with jquery .each

  - by user545520

  {"paging": {"pageNum":2,"action":"Next","type":"","availableCacheName":"getAllFunds","selectedCacheName":"","showFrom":101,"showTo":200,"totalRec":289,"pageSize":100}, "Data":[{"sourceCodeId":0,"radio_fund":"individua l","availableFunds":[],"fundId":288,"searchName":[],"fundName":"Asian Equity Fund A Class Income","srcFundGrpId":"PGI","firstElement":0,"las tElement":0,"totalElements":0,"pageList":[],"standardExtract":true}] I have json file with above format with two fileds,one paging and one is Data array. I able to retrieve values of paging,but i am not able to retrieve the values of data array with .each function of jquery. Any suggestions or inputs really appreciated.

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• Catching screen prints in Java

  - by Amir Rachum

  There's a class I'm working with that has a display() function that prints some information to the screen. I am not allowed to change it. Is there a way to "catch" the string it prints to the screen externally?

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• return value of main() in windows

  - by sisis

  In Linux, the return value of the main function is stored in $?, and can be shown using echo $?. Is there something equivalent in Windows?

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• CodeIgniter copying an instance - performance issues?

  - by fire

  I have quite a few libraries and models that get loaded into a controller, and each library/model creates an instance of CI using $this->CI =& get_instance(); in the __construct function. Are there any performance issues with this and is there a better way?

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• Redirect Using jQuery

  - by tshauck

  Hi, So I'm using jquerymobile for an app I'm creating. I have a link that if all the validation passes I'd like to go through, but if something fails I'd like to redirect. In the jquery something like this. Since it is jquerymobile the link will be a new div on the same index.html page - if that helps. $(#link).click(function(){ if(validation_fails) link_elsewhere; else return true; }

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• Getting single value from a single row with Mysql/PHP

  - by Ghostrider

  Often I just need to get a single value from MySQL that I know exists there. I use the following construct: $result = end(mysql_fetch_array(mysql_query('SELECT FOUND_ROWS()', $db))); Is there a proper single function in PHP that would do this?

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• How to get parallel behavior in Java Script ?

  - by Biswanath

  More or less I want to execute two functions in parallel. One way as I see is doing through SetTimeOut function. I have not completely gone through the ReactiveExentension, although it looks promising but may be overkill for my needs. Is there any framework which supports parallelism ? My use case is trivial, but I would like to know if anybody heavily needed parallelism in Java Script ? Thanks, Biswanath.

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• Do I have to put parent::__construct($config) in my CakePHP data source?

  - by Angel S. Moreno

  Is there a good reason to put parent::__construct($config) in the construct of a CakePHP data source I am developing? I see it being used in some of the data sources found in https://github.com/cakephp/datasources/blob/master/models/datasources/amazon_associates_source.php but not sure why. I could just do private $_config = array(); function construct($config){ $this->_config = $config; } and access my $config the same way.

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• Convert a Javascript Date format to desired PHP format

  - by Ajith

  How can we convert Wed Jun 09 2010 which is returns from a javascript function and get in a php script.I need to convert this date format to 2010-06-09.Thanks

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