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• Find out if function has any output with php

  - by Keith Donegan

  Quick one for you guys. Say I have a function that outputs a string: function myString() { echo 'Hello World'; } How would I go about testing to see if the function outputs any data? if(myString() ==''){ echo ''Empty function; }

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• Question about improving/upgrading your programming skills

  - by Gandalf StormCrow

  What would you say are these kind of questions good way to improve your skills or just waste of time since they have no application in real life(or not). http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3

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• jQuery: Scroll down page a set increment (in pixels) on click?

  - by bcWeb

  I'm trying to make a page scroll down 150px from the current position when an element is clicked. So lets say you're roughly halfway scrolled down a page. You click this link, and it will slide you down an additional 150 pixels. Is this possible with jQuery? I've been looking at scrollTop and the scrollTo plugin, but I can't seem to connect the dots.

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• [iPhone] How to control other buttons' actions?

  - by Devoted

  Hi so say I have this code: UIAlertView *alert = [[UIAlertView alloc] initWithTitle: @"Yay" message: msg delegate: self cancelButtonTitle: @"Proceed..." otherButtonTitles: @"1", @"2", nil]; How do I control the other buttons "1" and "2"? (Suppose all other necessary code is in place, such as the undefined variable msg) Thanks!

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• Are HTML entities necessary for anything besides escaping?

  - by Horace Loeb

  Obviously &lt; and &gt; are necessary for escaping user input. But is there any reason to use, say, &trade; instead of ™?

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• How to host a RESTful C# webservice and test it.

  - by Debby

  Hi, I need to create a RESTful webservice in C#. This is what I have right now: namespace WebService { [ServiceContract] public interface IService { [OperationContract(Name="Add")] [WebGet(UriTemplate = "/")] int Add(); } public class Service:IService { public int Add() { // do some calculations and return result return res; } } } Now, my question is How do i host this service at a location say (http://localhost/TestService) and how can i test the service in console application client?

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• how can I determine the path of a site using php/smarty?

  - by Kyle Sevenoaks

  Ok, say I have a page with the url: URL.com/checkout/completed, how can I setup an if statemet to perform: <if "This page has url of checkout/completed"> Content <else> No content </if> Is there a way? A simple way, my php/smarty-fu lacks.. A lot. Thanks.

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• Figure out texture coordinate from 4 others?

  - by user146780

  Lets say I have 4 verticies and their texture coordinates. How could I then figure out the texture coords of a 5th vertex? Thanks

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• parsing non-strict json, one in which keys are not enclosed in quotes, with Java

  - by Nishan

  I am trying to parse a string which in JSON format only that keys are not enclosed in quotes. I can very well parse this string in Javascript, but can not find a Java API which will help me parse this. All the APIs I tried assumes strict JSON format. Can anyone suggest a library which has an option to parse this, or a whole new approach to the problem (say like use regex instead) ?

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• How to programmatically end an ASP.NET session after a given amount of time.

  - by vaitrafra

  Hi, we're in need to stop the user session in an ASP.NET site after some time(say 20 mins). We know we can use a timer and code every page to expire on the timer tick, but we're searching a faster way, maybe through an IIS configuration? Is there a built in way to do such things? We're using ASP.NET 2.0, Framework 3.5, IIS 6, c#. TY.

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• Scaling textSize in a TextView

  - by fiXedd

  Say I have a TextView of a particular size (doesn't really matter what... fill_parent, 20dip, whatever). Is it possible to tell the text to shrink/grow in size to fit the available space without doing a lot of math?

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• Waiting for a subset of threads in a Java ThreadPool

  - by David Semeria

  Let's say I have a thread pool containing X items, and a given task employs Y of these items (where Y is much smaller than X). I want to wait for all of the threads of a given task (Y items) to finish, not the entire thread pool. If the thread pool's execute() method returned a reference to the employed thread I could simply join() to each of these Y threads, but it doesn't. Does anyone know of an elegant way to accomplish this? Thanks.

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• Scheme how do you remove the first element from a list?

  - by user297742

  How do i remove the first element from a list in scheme say it looks something like '((apple bob car) (cat dig) (e))) how would i just get rid of "apple" and leave the rest alone?

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• Printing values of all fields in C++ structure

  - by Zhinkaas

  Say a simple structure struct abc { int a; char b; } I got some value in a variable defined as its structure and now I want to print below a = [some value] b = [some character] What is the best way to achieve this for an arbitrary structure without having to write a dump...(...) function for each of the structure I encounter?

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• Are cookies enough for storing login data? (PHP)

  - by jpjp

  I am reading the Head First PHP/Mysql book and they say to store both the user's username, email into cookies and sessions. Is it safe to assume that everyone know a day has cookies? Or should I store both in sessions and cookies? I am not storing any sensitive data in cookies such as password, etc.

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• How to outsource pieces of a web project

  - by Luke101

  I would like to outsource pieces of a new web application/site. I don't want one company working on the whole project because they can easily change a few things and sell the software to someone else. I will be using a freelenace website like elance or guru. A buddy of mine has given me this advice but he did not say how this can be done. Any ideas on how to go about this?

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• Is length of ethernet header necessarily 14?What's pcap_pkthdr there for?

  - by httpinterpret

  Code snippet from here: void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data) { .... /* retireve the position of the ip header */ ih = (ip_header *) (pkt_data + 14); //length of ethernet header .... But this image doesn't say it's necessarily 14: How should I do it properly? UPDATE What's const struct pcap_pkthdr *header for, when do we need it?

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• Most performant way to check how many objects are referenced by an to-many relationship in Core Data

  - by dontWatchMyProfile

  Lets say I have an employees relationship in an Company entity, and it's to-many. And they're really many. Apple in 100 years, with 1.258.500.073 employees. Could I simply do something like NSInteger numEmployees = [apple.employees count]; without firing 1.258.500.073 faults? (Well, in 100 years, the iPhone will easily handle so many objects, for sure...but anyways)

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• Is it better to create methods with a long list of parameters or wrap the parameters into an object?

  - by GigaPr

  Hi, Is it better(what is the best practice) to create methods with a long list of parameters or wrap the parameters into an object? I mean lets say i have a Client data type with a long list of properties and i want to update all the properties at once. is it better to do something like public int Update(int id, string name, string surname, string streetAddress, string streetAddress2, string postcode, string town, string city, string nationality, string age, string gender,string job){ } or wrap all the properties in a object and do something like public int Update(Client client){} thanks

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• Accept all merge conflicts in git

  - by Micah

  I'm trying to do a merge and there's a bunch of conflicts. It's all generated files so what I want to do is basically say "ignore all merge conflicts, and check everything in from my own repo". I've tried git checkout . --ours git add -A git com -a It gives me an error though because there are still files in the "unmerged paths" bucket. How do I handle this? Thanks!

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• Adding a wrapper to an overloaded function

  - by Cev

  Say you had a timestamp function and then wanted to create a new function to combine your timestamp and Console.WriteLine(), e.g. public static void Write(string msg) { WriteTimeStamp(); Console.WriteLine( msg ); } But the WriteLine() method has 18 or so overloads, which will not be reflected in the signature of the wrapper function. How would you have the wrapper take non-strings and pass them on to WriteLine()?

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• Floating point computer - Trouble with getting back correct results

  - by Francisco P.

  Having trouble with a challenge. Let's say I have a theoretical, base 10, floating point calculator with the following characteristics Only 3 digits for mantissa 1 digit for exponent Sign for mantissa and exponent How would this machine compute the following? 300 + \sum_{i=1}^{100} 0.2 The correct result is 320. The machine's result is 300. But why? Can't get where the 20 goes goes missing... Thanks for your time.

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• How to rename a project?

  - by Nam Gi VU

  I have a project, say 'BlankConsoleApp', and I want to rename it. How can I do it?

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• Vetical and Horizontally Align an image in a box

  - by Rhyso

  The problem: I have a set width and height image Lets say height:160px; width:200px; with an image in each box. The image can vary in size but I need a solution that will always center the image vertically and horizontally within the box no matter what it's size. Horizontal doesn't seem to be a problem by using margin: 0 auto but vertical is proving difficult. I have tried vertical align: center but this doesnt appear to work either Any help is appriciated Thanks

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• REST services - exposing non-data "actions"

  - by ctacke

  I understand how to use REST for doing general entity interactions - using urls names to map to entities and the HTTP verbs to map to actions on those entities. But what is the generally accepted way of looking at "actions" more like RPC? For example, let's say I want to send a command for the device to reset? There's no real "entity" here or do I do something like POST to http://mydevice/device/reset?

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