concatenation

How can I remove duplicate values within a comma separated list in PHP? I have 2 versions of a customer questionnaire - one is more detailed than the other - and in one they are asked the items they like and in the other they are asked to specify the items they like in ranked order. In this particular example, one of the columns ('items_like') may contain several values in a comma separated list. There are two other scenarios where each of the columns may contain several values in a comma separated list. In order to display a list of all the items a customer likes, I am concatenating the 4

I'm trying to play a few WAV files after each other. I tried this method: for (String file : audioFiles) { new AePlayWave(file).start(); } But that plays them all at the same time. So I need a function that looks like this: public void play(Vector<String> audioFiles); The vector contains the files, for example: "test1.wav" , "test2.wav" I have been looking for over four hours, but I can't seem to find a working solution :( I also tried concatenating the WAV files to one AudioInputStream. It doesn't give any compiler errors, but the sound is totally messed up. Code: public static

So basically I wrote my little Add extension method for array types. using System; using System.Linq; public static class Extensions { public static void Add<T>(this T[] _self, T item) { _self = _self.Concat(new T[] { item }).ToArray(); } } public class Program { public static void Main() { string[] test = { "Hello" }; test = test.Concat(new string[] { "cruel" }).ToArray(); test.Add("but funny"); Console.WriteLine(String.Join(" ", test) + " world"); } } The output should be Hello cruel but funny world , but the but funny will never be concatenated within the extension method. Editing the same

I have a table with ID and Dept. Table is id dept salary date 1 30 2000 8/25/2015 12:06:54.870 PM 2 20 5500 7/12/2015 12:06:54.870 PM 3 30 6700 11/21/2013 12:06:54.870 PM 4 30 8900 4/16/2009 12:06:54.870 PM 5 30 9900 6/29/2014 12:06:54.870 PM 6 10 1120 7/3/2015 12:06:54.870 PM 7 20 8900 4/13/2013 12:06:54.870 PM 8 10 2400 7/23/2015 12:06:54.870 PM 9 30 2600 8/21/2015 12:06:54.870 PM 10 10 2999 8/3/2015 12:06:54.870 PM Just need the output like this Dept ID 30 1,3,4,5,9 This is the best way I know. Please do post if anyone knows a better solution: I have named your table sal DECLARE @id INT ,

I use ffmpeg to concat videos in a fashion similar to this: I ran into a weird error with my inputs [Parsed_concat_0 @ 000000002a05bb80] Input link in10:v0 parameters (size 1280x720, SAR 2049:2048) do not match the corresponding output link in0:v0 parameters (1280x720, SAR 1:1) From what I've researched I need to use setsar to force all the videos to be 1:1 before I concat, but I'm not sure how to do that in my filter. Add the setsar filter: ffmpeg -i 0.mp4 -i 1.mp4 -i 2.mp4 -filter_complex "[0:v]setsar=1[v0];[v0][1:v][2:v]concat=n=3:v=1:a=0[v]" -map "[v]" out.mp4 This example is assuming that

I have two environment variables in apache config, I want to concatenate them into one new environment variable. Is this possible? I realise this doesn't work, but it demonstrates the sort of thing I'm after: SetEnv one foo SetEnv two bar SetEnv three one+two ...and then 'three' would have the value "foobar" Use a mod_rewrite regular expression with two wildcard backreferences to access the environment variables and concatenate the strings: #This will be true for any user agent RewriteCond %{HTTP_USER_AGENT} ^.* #Replace / with / and set the new environment variable RewriteRule /(%{ENV:one})*(