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• PHP ToString() equivalent

  - by Antoine Aubry

  How do I convert the value of a PHP variable to string? I was looking for something better than concatenating with an empty string: $myText = $myVar . ''; like the ToString() method in Java or .NET.

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• How to benchmark functions in clojure

  - by Peter Tillemans

  I know I can get the time take to evaluate a function can be printed out on the screen/stdout using the time function/macro. The time macro returns the value of the evaluated function, which makes it great to use it inline. However I want to automatically measure the runtime under specific circumstances. is there a function which returns the elapsed time in some library to hep with this benchmarking?

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• ruby request.query_string

  - by Small Wolf

  Hey ,Guys! I want to use the method request.query_string to send the key-value to the controller,how can i use in the sentences; =link_to 'excel' , reports_excel_path(:format => 'xls',:from => 'conversations') Thank you!

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• MYSQL Select statment Order By with Group By

  - by mouthpiec

  I have the following simple SQL statment SELECT id, name, value_name, value_id FROM table GROUP BY id ORDER BY value_id DESC when grouping I would like to get the value_name and value_id of the tuple where the value_id is the biggest. The way it is i am getting the smallest value. For example 1, name1, valuename, 3 (where i know that there is a value_id of 5) Can you please help?

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• sizeof(class) c++

  - by badkya

  How is it possible for sizeof(class) to return two different values depending on context? The class itself should have the same size right irrespective of where I ask this question? I see a smaller value when querying class size from main() and another when I query class size from an extended class.

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• java beginner- in which folder should I place a "database.properties" file

  - by Arvind

  I read some tutorials on how to read data from a database.properties file- which basically stored key-value pairs. What i want to know is, in which folder should I place this file? Is it in the root (ie "src") or within a package... And how do I access this file, if it is placed in "src"- my code will be within a package (and the package's directory will be under src)- so how do I access the properties file, which is in "src", from a class within a package?

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• the selector in JavaScript

  - by Small Wolf

  I want to get the object of this code , <input class="radio" id="conversation_sub_kind_id_208" name="conversation[sub_kind_id]" onclick="set_department_name('department_name208')" type="radio" value="208" /> I want to use jQuery Framework to get the object, like the document.getElementbyTagName("conv..."); what should i do in here? Thank you, and best regards!

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• Multiply with find and replace

  - by cdated

  Can regular expressions be used to perform arithmetic? Such as find all numbers in a file and multiply them by a scalar value.

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• casting size_t to int to declare size of char array

  - by Brandon Hilton

  I am trying to declare a size of a char array and I need to use the value of the variable that is declared as a size_t to declare that size. Is there anyway I can cast the size_t variable to an int so that I can do that?

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• Get values from *.resx files in XAML

  - by nihi_l_ist

  Is it possible to add some value from resource file right into the XAML markup? Or for localization we always have to make something like this in *.cs file: txtMessage.Text = Messages.WarningUserMessage; Where Messages is resource, and txtMessage is TextBlock.

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• How do I limit JPQ output?

  - by den-javamaniac

  I need to limit number of entities returned by a query to some certain value inside a JPA query (through JPQL). Particularly: select m from Manual m //constraint e.g. in sql (mysql syntax) I would do it like: select * from Manual limit 1 The only solution that comes up is simply to get all entities and then choose first one, which is out of the issue. Any ideas?

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• Any way in C++ to forward declare a function prototype?

  - by jsyjr

  I make regular use of forward class declarations and pointers to such classes. I now have a need to pass a function pointer through a number of layers. I would prefer to include the header that declares my function pointer's prototype only into the module that dereferences a function pointer rather than into each layer that simply passes along that pointer value. Is this possible?

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• How to check if *number* is in a array

  - by Emil

  Pretty basic programming question, I know PHP have a function for it, but does the iPhone OS have one? I want to check if the current indexPath is a value in an array. PHP Example: <?php $indexPath = 3; $array = array("0", "1", "2", "3", "4"); if (in_array($indexPath, $array)) { // Do something } ?> Does anybody know how to do the same thing inthe iPhone OS?

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• I want to learn a new language!

  - by Alex

  Hi, I'm a college student majoring in computer science. I know java and will be learning C++ the next couple years at school. I want to add another language to my repertoire and have gotten conflicting advice: Ruby, Python, Perl, JavaScript, PHP, AJAX, among others. I was wondering what everyone's opinions were on the relative value of each of these languages in the job market, the ease of learning of each of the languages, and just personal preferences when it comes to the languages mentioned above. Thanks!

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• How do you convert a string to a node in XQuery?

  - by Sixty4Bit

  I would like to convert a string into a node. I have a method that is defined to take a node, but the value I have is a string (it is hard coded). How do I turn that string into a node? So, given an XQuery method: define function foo($bar as node()*) as node() { (: unimportant details :) } I have a string that I want to pass to the foo method. How do I convert the string to a node so that the method will accept the string.

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• How to listen to that property?

  - by mystify

  @constant kAudioSessionProperty_AudioInputAvailable A UInt32 with a value other than zero when audio input is available. Use this property, rather than the device model, to determine if audio input is available. A listener will notify you when audio input becomes available. For instance, when a headset is attached to the second generation iPod Touch, audio input becomes available via the wired microphone. So, if I wanted to get notified about kAudioSessionProperty_AudioInputAvailable, how would I do that?

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• T-SQL Subquery Question

  - by Nick

  Hi, i have two queries. For each tuple of query1 i want to run query2. i dont want to use cursors. i tried several approaches using subqueries. query1: select distinct category, Count(category) as CategoryCount from mytable group by category query2: select top 3 Text, Title, Category from mytable where Category = '1' Category = '1' is a sample. the value should come from query1

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• Google Map lng + lat to hidden field not working

  - by user547794

  Hello, I am trying to get Marker data into hidden fields on my form. I'm not sure why this isn't working, it must be something in my js syntax: var initialLocation; var siberia = new google.maps.LatLng(60, 105); var newyork = new google.maps.LatLng(40.69847032728747, -73.9514422416687); var browserSupportFlag = new Boolean(); function initialize() { var myOptions = { zoom: 6, mapTypeId: google.maps.MapTypeId.HYBRID }; var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); myListener = google.maps.event.addListener(map, 'click', function(event) { placeMarker(event.latLng), google.maps.event.removeListener(myListener); }); // Try W3C Geolocation (Preferred) if(navigator.geolocation) { browserSupportFlag = true; navigator.geolocation.getCurrentPosition(function(position) { initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude); map.setCenter(initialLocation); }, function() { handleNoGeolocation(browserSupportFlag); }); // Try Google Gears Geolocation } else if (google.gears) { browserSupportFlag = true; var geo = google.gears.factory.create('beta.geolocation'); geo.getCurrentPosition(function(position) { initialLocation = new google.maps.LatLng(position.latitude,position.longitude); map.setCenter(initialLocation); }, function() { handleNoGeoLocation(browserSupportFlag); }); // Browser doesn't support Geolocation } else { browserSupportFlag = false; handleNoGeolocation(browserSupportFlag); } function handleNoGeolocation(errorFlag) { if (errorFlag == true) { alert("Geolocation service failed."); initialLocation = newyork; } else { alert("Your browser doesn't support geolocation. We've placed you in Siberia."); initialLocation = siberia; } } function placeMarker(location) { var marker = new google.maps.Marker({ position: location, map: map, draggable: true }); map.setCenter(location); } } var lat = latlng.lat(); var lng = latlng.lng(); document.getElementById("t1").value=lat; document.getElementById("t2").value=lng; <input type="hidden" name="lat" id="t1"> <input type="hidden" name="long" id="t2">

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• Environment variable expansion in persistence.xml (JPA)

  - by user342495

  I am developing a Eclipse RCP plugin which uses JPA. I tried to specify the database path via a variable give to the JVM on runtime. The property is set correctly but the database is created in a folder named after the variable name (here: ${DBHOME}). <property name="javax.persistence.jdbc.url" value="jdbc:derby:${DBHOME};create=true"/> Is there a possibility to fix this? Thx

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• vim c++ break line

  - by Myx

  Hello: How can I break long lines when writing c++ code in vim? For example, if I have something like 56 fprintf(stderr, "Syntax error reading recursion value on 57 line %d in file %s\n", line_count, filename); I get the following compile errors: :56:25: warning: missing terminating " character :56: error: missing terminating " character :57: error: stray ‘\’ in program :57:37: warning: missing terminating " character :57: error: missing terminating " character I'm a vim newbie. Thanks!

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• Returning different data types C#

  - by user1810659

  i have create a class library (DLL) with many different methods. and the return different types of data(string string[] double double[]). Therefore i have created one class i called CustomDataType for all the methods containing different data types so each method in the Library can return object of the custom class and this way be able to return multiple data types I have done it like this: public class CustomDataType { public double Value; public string Timestamp; public string Description; public string Unit; // special for GetparamterInfo public string OpcItemUrl; public string Source; public double Gain; public double Offset; public string ParameterName; public int ParameterID; public double[] arrayOfValue; public string[] arrayOfTimestamp; // public string[] arrayOfParameterName; public string[] arrayOfUnit; public string[] arrayOfDescription; public int[] arrayOfParameterID; public string[] arrayOfItemUrl; public string[] arrayOfSource; public string[] arrayOfModBusRegister; public string[] arrayOfGain; public string[] arrayOfOffset; } The Library contains methods like these: public CustomDataType GetDeviceParameters(string deviceName) { ...................... code getDeviceParametersObj.arrayOfParameterName; return getDeviceParametersObj; } public CustomDataType GetMaxMin(string parameterName, string period, string maxMin) { .....................................code getMaxMingObj.Value = (double)reader["MaxMinValue"]; getMaxMingObj.Timestamp = reader["MeasurementDateTime"].ToString(); getMaxMingObj.Unit = reader["Unit"].ToString(); getMaxMingObj.Description = reader["Description"].ToString(); return getMaxMingObj; } public CustomDataType GetSelectedMaxMinData(string[] parameterName, string period, string mode) {................................code selectedMaxMinObj.arrayOfValue = MaxMinvalueList.ToArray(); selectedMaxMinObj.arrayOfTimestamp = MaxMintimeStampList.ToArray(); selectedMaxMinObj.arrayOfDescription = MaxMindescriptionList.ToArray(); selectedMaxMinObj.arrayOfUnit = MaxMinunitList.ToArray(); return selectedMaxMinObj; } As illustrated thi different methods returns different data types,and it works fine for me but when i import the DLL and want to use the methods Visual studio shwos all the data types in the CustomDataType class as suggestion for all the methods even though the return different data.This is illusrtated in the picture below. As we can see from the picture with the suggestion of all the different return data the user can get confused and choose wrong return data for some of the methods. So my question is how can i improve this. so Visual studio suggest just the belonging return data type for each method.

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• onclick event in combo box

  - by raam

  function ram(){ document.write("Hello World!") alert("ok"); } India Autralia England Ameriaca Pakistan In this above code the event will not fire for combo box ..i try by using focus and click event....i can i do this....and i want 1 more thing if i select combo box value as India,i want to create a combo box with state(elements are TN,DL..) updation...

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• range of parameter and values in php

  - by Ajay

  What is exact meaning of this statement... VERIFY THE PARAMETER VALUE ARE IN THEIR EXPECTED RANGE AND TYPE. I am passing values in POST method through URL in php.

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• #Define Compiler Directive in C#

  - by pm_2

  In C, I could declare a compiler directive as follows: #define MY_NUMBER 10 However, in C#, I only appear to be able to do this: #define MY_NUMBER Which is obviously useless in this case. Is this correct, or am I doing something wrong? If not, can anyone suggest a way of doing this, either at namespace or solution level? I thought of maybe creating a static class, but that seems to be overkill for one value.

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• Can the XML serializer output empty tags?

  - by John

  I am using the XML serializer. I would like it to convert all my object's elements, but it only seems to output tags when there is a value. How can I get it to output empty tags?

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