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  • PHP sandbox/sanitize code passed to create_function

    - by kpowerinfinity
    Hello, I am using create_function to run some user-code at server end. I am looking for any of these two: Is there a way to sanitize the code passed to it to prevent something harmful from executing? Alternately, is there a way to specify this code to be run in a sandboxed environment so that the user can't play around with anything else. Thanks!

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  • Type error while trying to implement the (>>=) function in order to create a custom monad transforme

    - by CharlieP
    Hello, I'm trying to create a monad transformer for a future project, but unfortunately, my implementation of the Monad typeclasse's (=) function doesn't work. First of all, here is the underlying monad's implementation : newtype Runtime a = R { unR :: State EInfo a } deriving (Monad) Here, the implementation of the Monad typeclasse is done automatically by GHC (using the GeneralizedNewtypeDeriving language pragma). The monad transformer is defined as so : newtype RuntimeT m a = RuntimeT { runRuntimeT :: m (Runtime a) } The problem comes from the way I instanciate the (=) function of the Monad typeclasse : instance (Monad m) => Monad (RuntimeT m) where return a = RuntimeT $ (return . return) a x >>= f = runRuntimeT x >>= id >>= f The way I see it, the first >>= runs in the underlying m monad. Thus, runRuntimeT x >>= returns a value of type Runtime a (right ?). Then, the following code, id >>=, should return a value of type a. This value is the passed on to the function f of type f :: (Monad m) => a -> RuntimeT m b. And here comes the type problem : the f function's type doesn't match the type required by the (=) function. Jow can I make this coherent ? I can see why this doesn't work, but I can't manage to turn it into something functionnal. Thank you for you help, and do not hesitate to correct any flaws in my message, Charlie P.

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  • Execute JavaScript function on a dynamic element (AJAX).

    - by jartaud
    Hello i have this following function: ... var model = $("#carModel"); .... model.change(validModel); function validModel(){ if(model.val() == undefined){ model.addClass("errorJS"); return false; }else{ model.removeClass("errorJS"); return true; } } I am getting carmodel id from a select box generated after an AJAX call. I can get its value in the Firebug console, but the function doest not execute. Even tough i use model.livequery(validModel); // The errorJS class put a red border in a element, if the function returns false

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  • jQuery trigger mouseover function when page loads with the mouse over the element

    - by Gal V
    Hello all, I have an ASP.NET document, with an Image element within it. I created a mouseover function on this image element and it's working fine. The question is: If the mouse is ALREADY over the element when the document loads itself, the mouseover function doesn't trigger (I need to mouseout and then mouseover again in order to trigger it). Is there any way to check in the $(document).ready function if the mouse is already on top of this element? and if yes- trigger the mouseover function. Thanks all!

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  • Javascript function in external file is undefined when declared in a certain way

    - by Obay
    myfunc() runs successfully when called from within the same js file. but it is undefined (Firebug) when called from an HTML page: JS file: $(function() { myfunc() { alert('inside myfunc'); } alert('outside myfunc'); myfunc(); //this successfully runs myfunc() }); HTML: <script> $(function() { myfunc(); //this doesn't run myfunc(). It's undefined }); </script> But when I change myfunc() declaration to: myfunc = function () { ... } It's no longer undefined, and runs successfully. Sorry for this very noob question, but what just happened? Why did it work when I changed the way I declared the function?

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  • Could not find function: resolve-uri

    - by Nisarg Mehta
    When i am trying to transform xml it gives me erro that Could not find function: resolve-uri where resolve-uri is a xpath function . below is my xslt line which will use resolve uri function . <xsl:variable name="filename" select="resolve-uri(concat($dir,'/',$xmlFileName,'_',position(),'.xml'))" /> Can anybody please help me.Is it because of xslt version difference ? Thanks in Advance.

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  • Call External Javascript function using Codeigniter

    - by Ajith
    Hi, I need to call a javascript function from my controller in codeigniter.It is possible in codeigniter ? Problem Details My javascript file contains ` function debugOutput(msg) { alert (msg); } ` and also I need to call it from my controller. I done it as follows. <?php function check() { header('Content-type: application/x-javascript'); // body here } ?> function execute() { debugOutput("&lt;?php echo 'test'; ?&gt;"); } execute(); But it is not working.Please help me to solve it.

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  • Call javascript from objective-c, only works with system functions like alert() etc / phonegap

    - by adrian
    hi havent found the solution yet in the forum. i want to call a function i created in the index.html via a objective-c function. As explained in stringByEvaluatingJavaScriptFromString so the network detection doesnt work for me the function gets called but no javascript is called in the index.html here is the code i use - (void)updateReachability:(NSString*)callback { NSString* jsCallback = @"navigator.network.updateReachability"; if (callback) jsCallback = callback; NSString* status = [[NSString alloc] initWithFormat:@"%@({ hostName: '%@', ipAddress: '%@', remoteHostStatus: %d, internetConnectionStatus: %d, localWiFiConnectionStatus: %d });", jsCallback, [[Reachability sharedReachability] hostName], [[Reachability sharedReachability] address], [[Reachability sharedReachability] remoteHostStatus], [[Reachability sharedReachability] internetConnectionStatus], [[Reachability sharedReachability] localWiFiConnectionStatus]]; [webView stringByEvaluatingJavaScriptFromString:status]; [status release]; } If i log the status the string i see can be executed in the index.html file, the syntax is ok. but it doesnt get called if i do alert( etc... it gets called... need some help pls, because network detection is a kill criteria to publish a app!!! Adrian

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  • detachEvent not working with named inline functions

    - by Polshgiant
    I ran into a problem in IE8 today (Note that I only need to support IE) that I can't seem to explain: detachEvent wouldn't work when using a named anonymous function handler. document.getElementById('iframeid').attachEvent("onreadystatechange", function onIframeReadyStateChange() { if (event.srcElement.readyState != "complete") { return; } event.srcElement.detachEvent("onreadystatechange", onIframeReadyStateChange); // code here was running every time my iframe's readyState // changed to "complete" instead of only the first time }); I eventually figured out that changing onIframeReadyStateChange to use arguments.callee (which I normally avoid) instead solved the issue: document.getElementById('iframeid').attachEvent("onreadystatechange", function () { if (event.srcElement.readyState != "complete") { return; } event.srcElement.detachEvent("onreadystatechange", arguments.callee); // code here now runs only once no matter how many times the // iframe's readyState changes to "complete" }); What gives?! Shouldn't the first snippet work fine?

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  • Calling a generic function in VB.NET / C#

    - by Quandary
    Question: I want to call a generic function, defined as: Public Shared Function DeserializeFromXML(Of T)(Optional ByRef strFileNameAndPath As String = Nothing) As T Now when I call it, I wanted to do it with any of the variants below: Dim x As New XMLserialization.cConfiguration x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of x)() x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(GetType(x))() x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of GetType(x))() But it doesn't work. I find it very annoying and unreadable having to type x = XMLserialization.XMLserializeLDAPconfig.DeserializeFromXML(Of XMLserialization.cConfiguration)() Is there a way to call a generic function by getting the type from the instance ?

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  • How to use MSBuild to create ClickOnce files that match those created by Visual Studio

    - by EasyTimer
    I am trying to use MSBuild in a TFS Build file to create click once files for my application. According to MSDN (http://msdn.microsoft.com/en-us/library/ms165431.aspx) it seems that the project file's click once settings should be used unless you override them with property arguments on the command line. However, even though I have specified (in VS) that some prerequisites should be bootstrapped in with the setup, they don't seem to get installed if I use the MSBuild command line to create the package, even though they do seem to get installed if I use Visual Studio to create the ClickOnce package. Please could someone advise me how to get my prerequisites to get installed via ClickOnce when the clickonce package is built using the MSBuild command line? For information, in Visual Studio, project properties, "Publish" tab, "Prerequisite" button, I have ticked "Create setup program to install prerequisite components", I have ticked my pre-requisites and I have specified "Download prerequisites from the component vendor's web site"

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  • How to bind two document objects to single jquery function

    - by dbr
    I have a custom jquery function that I need to bind to two iframe document objects. Currently it will work with just one doing something like: $(window.frames["iframeName"].document).bind('textselect', function(e) { }); what I'm looking to do is something like: $(window.frames["iframeName"].document,window.frames["iframeName2"].document).bind('textselect', function(e) { });

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  • Function for putting all database to an array

    - by jasmine
    I have written a function to print database to an array like this Array( ID=>1, PARENTID =>1, TITLE => LIPSUM, TEXT =>LIPSUM ) My function is: function dbToArray($db) { $allArrays =array(); $query = mysql_query("SELECT * FROM $db"); $dbRow = mysql_fetch_array($query); for ($i=0; $i<count($dbRow) ; $i++) { $allArrays[$i] = $dbRow; } $txt .='<pre>'; $txt .= print_r($allArrays); $txt .= '</pre>'; return $txt; } Anything wrong in my function. Any help is appreciated about my problem. Thanks in advance

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  • How to create a compiler in vb.net

    - by Cyclone
    Before answering this question, understand that I am not asking how to create my own programming language, I am asking how, using vb.net code, I can create a compiler for a language like vb.net itself. Essentially, the user inputs code, they get a .exe. By NO MEANS do I want to write my own language, as it seems other compiler related questions on here have asked. I also do not want to use the vb.net compiler itself, nor do I wish to duplicate the IDE. The exact purpose of what I wish to do is rather hard to explain, but all I need is a nudge in the right direction for writing a compiler (from scratch if possible) which can simply take input and create a .exe. I have opened .exe files as plain text before (my own programs) to see if I could derive some meaning from what I assumed would be human readable text, yet I was obviously sorely disappointed to see the random ascii, though it is understandable why this is all I found. I know that a .exe file is simply lines of code, being parsed by the computer it is on, but my question here really boils down to this: What code makes up a .exe? How could I go about making one in a plain text editor if I wanted to? (No, I do not want to do that, but if I understand the process my goals will be much easier to achieve.) What makes an executable file an executable file? Where does the logic of the code fit in? This is intended to be a programming question as opposed to a computer question, which is why I did not post it on SuperUser. I know plenty of information about the System.IO namespace, so I know how to create a file and write to it, I simply do not know what exactly I would be placing inside this file to get it to work as an executable file. I am sorry if this question is "confusing", "dumb", or "obvious", but I have not been able to find any information regarding the actual contents of an executable file anywhere. One of my google searches Something that looked promising EDIT: The second link here, while it looked good, was an utter fail. I am not going to waste hours of my time hitting keys and recording the results. "Use the "Alt" and the 3-digit combinations to create symbols that do not appear on the keyboard but that you need in the program." (step 4) How the heck do I know what symbols I need??? Thank you very much for your help, and my apologies if this question is a nooby or "bad" one. To sum this up simply: I want to create a program in vb.net that can compile code in a particular language to a single executable file. What methods exist that can allow me to do this, and if there are none, how can I go about writing my own from scratch?

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  • [PHP] Difference between normal and magic setters and getters

    - by Saif Bechan
    I am using a magic getter/setter class for my session variables, but I don't see any difference between normal setters and getters. The code: class session { public function __set($name, $value) { $_SESSION[$name] = $value; } public function __unset($name) { unset($_SESSION[$name]); } public function __get($name) { if(isset($_SESSION[$name])) { return $_SESSION[$name]; } } } Now the first thing I noticed is that I have to call $session->_unset('var_name') to remove the variable, nothing 'magical' about that. Secondly when I try to use $session->some_var this does not work. I can only get the session variable using $_SESSION['some_var']. I have looked at the PHP manual but the functions look the same as mine. Am I doing something wrong, or is there not really anything magic about these functions.

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  • createthread in WinCE

    - by ame
    I have this code written in MFC as a win32 application: CZoneThread* pThread = new CZoneThread( sZoneInfo ); pThread-CreateThread(); Here, CZoneThread is another class. Will this code work correctly in WinCE as well?

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  • Parameters with default value not in PsBoundParameters?

    - by stej
    General code Consider this code: PS> function Test { param($p='default value') $PsBoundParameters } PS> Test 'some value' Key Value --- ----- p some value PS> Test # nothing I would expect that $PsBoundParameters would contain record for $p variable on both cases. Is that correct behaviour? Question I'd like to use splatting for a lot of functions that would work like this: function SomeFuncWithManyRequiredParams { param( [Parameter(Mandatory=$true)][string]$p1, [Parameter(Mandatory=$true)][string]$p2, [Parameter(Mandatory=$true)][string]$p3, ...other parameters ) ... } function SimplifiedFuncWithDefaultValues { param( [Parameter(Mandatory=$false)][string]$p1='default for p1', [Parameter(Mandatory=$false)][string]$p2='default for p2', [Parameter(Mandatory=$false)][string]$p3='default for p3', ...other parameters ) SomeFuncWithManyRequiredParams @PsBoundParameters } I have more functions like this and I don't want to call SomeFuncWithManyRequiredParams with all the params enumerated: SomeFuncWithManyRequiredParams -p1 $p1 -p2 $p2 -p3 $p3 ... Is it possible?

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  • Selecting a user-defined scalar function that takes as a parameter another field

    - by ghills
    I have a table a with a list of id's, and a user-defined function foo(id) that takes the id and returns a VARCHAR(20). What I am trying to do is: SELECT id, foo(id) AS 'text field' FROM a However, instead of calling the function for each ID number, like I desired, the text comes back the same for every row. I have tested the foo() function manually with the returned ID's and it does not have that problem, so I realize I must not understand something about the evaluation of the query.

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  • detachEvent not working with named anonymous functions

    - by Polshgiant
    I ran into a problem in IE8 today (Note that I only need to support IE) that I can't seem to explain: detachEvent wouldn't work when using a named anonymous function handler. document.getElementById('iframeid').attachEvent("onreadystatechange", function onIframeReadyStateChange() { if (event.srcElement.readyState != "complete") { return; } event.srcElement.detachEvent("onreadystatechange", onIframeReadyStateChange); // code here was running every time my iframe's readyState // changed to "complete" instead of only the first time }); I eventually figured out that changing onIframeReadyStateChange to use arguments.callee (which I normally avoid) instead solved the issue: document.getElementById('iframeid').attachEvent("onreadystatechange", function () { if (event.srcElement.readyState != "complete") { return; } event.srcElement.detachEvent("onreadystatechange", arguments.callee); // code here now runs only once no matter how many times the // iframe's readyState changes to "complete" }); What gives?! Shouldn't the first snippet work fine?

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  • Using jquery append() in <head> (in a function/class)

    - by Anonymous
    I want to use the append() function from inside the <head>, in a function to be specific, like so: function custom_img(src_img) { $("div").append("<img src='"+src_img+"'>"); } var myimg = new custom_img("test.jpg"); This is a quick example that I just wrote out. I want my function to make a new image like that every time I create a new object like this. Obviously this doesn't work, since the append() requires to be in the body (I've tried this). How would I do this?

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  • amfPHP Function Input Trouble

    - by she hates me
    Hello, I'm writing an amfPHP function which should take string input. It takes alphanumeric characters without a problem, but unfortunately it returns data as "2" if I send "2.UgnFl4kAWovazp_tVo6fHg__.86400.1260025200-571701419" as parameter. here is the function (real simple as you can see) function checkOpenSession($guid, $session_key) { return $session_key; }

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