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  • How to extract only part of string in PHP?

    - by shin
    I have a following string and I want to extract image123.jpg. ..here_can_be_any_length "and_here_any_length/image123.jpg" and_here_also_any_length image123 can be any length (newimage123456 etc) and with extension of jpg, jpeg, gif or png. I assume I need to use preg_match, but I am not really sure how to code it. Any help will be appreciated. Thanks in advance.

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  • Using thread inter-communication to increase my server app's IO throughput; not sure how

    - by Howard Guo
    My server application creates a new thread for each incoming connection. Incoming requests are serialized in a BlockingQueue. There is one worker thread taking items from the queue, produce a response and send the response through socket. I have noticed a throughput issue: Currently, worker thread is responsible of sending the response message through socket, thus severely wasting processing power and throughput. I am considering: rather than sending the response itself, why not telling network IO threads to send the response? However, when I think about thread inter-communication, I cannot yet figure out how to approach it: Worker thread will produce a response, but how will it inform the response message to IO thread? Is there a standard/best practice? Thank you.

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  • Changing text depending on rounded total from database

    - by NeonBlue Bliss
    On a website I have a number of small PHP scripts to automate changes to the text of the site, depending on a figure that's calculated from a MySQL database. The site is for a fundraising group, and the text in question on the home page gives the total amount raised. The amount raised is pulled from the database and rounded to the nearest thousand. This is the PHP I use to round the figure and find the last three digits of the total: $query4 = mysql_query("SELECT SUM(amountraised) AS full_total FROM fundraisingtotal;"); $result4 = mysql_fetch_array($query4); $fulltotal = $result4["full_total"]; $num = $fulltotal + 30000; $ftotalr = round($num,-3); $roundnum = round($num); $string = $roundnum; $length = strlen($string); $characters = 3; $start = $length - $characters; $string = substr($string , $start ,$characters); $figure = $string; (£30,000 is the amount that had been raised by the previous fundraising team from when the project first started, which is why I've added 30000 to $fulltotal for the $num variable) Currently the text reads: the bookstall and other fundraising events have raised more than &pound;<? echo number_format($ftotalr); ?> I've just realised though that because the PHP is rounding to the nearest thousand, if the total's for example £39,200 and it's rounded to £40,000, to say it's more than £40,000 is incorrect, and in that case I'd need it to say 'almost £40,000' or something similar. I obviously need to replace the 'more than' with a variable. Obviously I need to test whether the last three digits of the total are nearer to 0 or 1000, so that if the total was for example £39,2000, the text would read 'just over', if it was between £39,250 and £39,400 something like 'over', between £39,400 and £39,700 something like 'well over', and between £39,700 and £39,999, 'almost.' I've managed to get the last three digits of the total as a variable, and I think I need some sort of an if/else/elseif code block (not sure if that would be the right approach, or whether to use case/break), and obviously I'm going to have to check whether the figure meets each of the criteria, but I can't figure out how to do that. Could anyone suggest what would be the best way to do this please?

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  • How restore data from pcap file?

    - by dscTobi
    Hi ppl =) I have following file: test_network.pcap: tcpdump capture file (little-endian) - version 2.4 (Ethernet, capture length 65535) I know that in this file are few video streams and i need to extract them. How can i do this? The biggest problem is that size of file ~180 GB ))

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  • MS SQL: Primary file group is full

    - by aximili
    I have a very large table in my database and I am starting to get this error Could not allocate a new page for database 'mydatabase' because of insufficient disk space in filegroup 'PRIMARY'. Create the necessary space by dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup. How do you fix this error? I don't understand the suggestions there.

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  • CollectionChanged notification across threads?

    - by Mark
    I'm writing a download manager using C#/WPF, and I just encountered this error: This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread. The basic flow of my program is that a few web pages/downloads are enqueued at the start, and then they're downloaded asynchronously. When an HTML page has completed downloading, I parse it and look for more stuff to download, then enqueue it directly from within the worker thread. I get that error when trying to send out the CollectionChanged event on my customized queue class. However, I need to fire that event so that the GUI can get updated. What are my options?

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  • Finding substring of a word found in joining a string from another string

    - by 2er0
    Given a list of words, L, that are all the same length, and a string, S, find the starting position of the substring of S that is a concatenation of each word in L exactly once and without any intervening characters. This substring will occur exactly once in S. Example: L: "fooo", "barr", "wing", "ding", "wing" S: "lingmindraboofooowingdingbarrwingmonkeypoundcake" Word found in joining L and also found in S: "fooowingdingbarrwing" Answer: 13 L: "mon", "key" S: "monkey Word found in joining L and also found in S: "monkey Answer: 0 L: "a", "b", "c", "d", "e" S: "abcdfecdba" Word found in joining L and also found in S: "ecdba Answer: 5

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  • What's the best way to spy on IOCTLs?

    - by Pavel Radzivilovsky
    I have a U9 Telit modem which, at first, appears as a disk drive on USB bus. Then, the native software after autorun and install, sends a couple of IOCTLs to tell the device to reappear as other things. I can see them in procexp. I want to better spy on these, to know exactly what they send and how, in order to do the same in proper way.

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  • iphone read txt file from UIWebView

    - by Ni
    I can read the data in file.txt file located in local disk. NSString *filePath = [[NSBundle mainBundle] pathForResource:@"file" ofType:@"txt"]; NSString* Data = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:&error ]; now, I upload the file.txt file into a website. how can i read the data from the txt file now from UIWebView? Please help!!

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  • JTable horizontal scrollbar in Java

    - by Mr CooL
    Is there any way to enable horizontal scrollbar whenever necessary?? The situation was as such: I've a JTable on Netbeans, one of the cells, stored a long length of data. Hence, I need to have horizontal scrollbar. Anyone has idea on this? THanks in advance for any helps..

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  • Why does Python Array Module Process Strings and Lists Differently?

    - by Casey
    I'm having trouble understanding the result of the following statements: >>> from array import array >>> array('L',[0xff,0xff,0xff,0xff]) array('L', [255L, 255L, 255L, 255L]) >>> from array import array >>> array('L','\xff\xff\xff\xff') Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: string length not a multiple of item size

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  • How can I access a byte array as shorts in Java

    - by shellback3
    I have a an array of byte, size n, that really represents an array of short of size n/2. Before I write the array to a disk file I need to adjust the values by adding bias values stored in another array of short. In C++ I would just assign the address of the byte array to a pointer for a short array with a cast to short and use pointer arithmetic or use a union. How may this be done in Java - I'm very new to Java BTW.

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  • Understanding WebRequest

    - by Nai
    I found this snippet of code here that allows you to log into a website and get the response from the logged in page. However, I'm having trouble understanding all the part of the code. I've tried my best to fill in whatever I understand so far. Hope you guys can fill in the blanks for me. Thanks string nick = "mrbean"; string password = "12345"; //this is the query data that is getting posted by the website. //the query parameters 'nick' and 'password' must match the //name of the form you're trying to log into. you can find the input names //by using firebug and inspecting the text field string postData = "nick=" + nick + "&password=" + password; // this puts the postData in a byte Array with a specific encoding //Why must the data be in a byte array? byte[] data = Encoding.ASCII.GetBytes(postData); // this basically creates the login page of the site you want to log into WebRequest request = WebRequest.Create("http://www.mrbeanandme.com/login/"); // im guessing these parameters need to be set but i dont why? request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.ContentLength = data.Length; // this opens a stream for writing the post variables. // im not sure what a stream class does. need to do some reading into this. Stream stream = request.GetRequestStream(); // you write the postData to the website and then close the connection? stream.Write(data, 0, data.Length); stream.Close(); // this receives the response after the log in WebResponse response = request.GetResponse(); stream = response.GetResponseStream(); // i guess you need a stream reader to read a stream? StreamReader sr = new StreamReader(stream); // this outputs the code to console and terminates the program Console.WriteLine(sr.ReadToEnd()); Console.ReadLine();

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  • How to limit the number of the same Activity on the stack for an Android application

    - by johnrock
    Is this possible in an Android app? I want to make it so that no matter how many times a user starts activityA, when they hit the back button they will never get more than one occurence of activityA. What I am finding in my current code is that I have only two options: 1. I can call finish() in activityA which will prevent it from being accessible via the back button completely, or 2. I do not call finish(), and then if the user starts activityA (n) times during their usage, there will be (n) instances when hitting the back button. Again, I want to have activityA accessible by hitting the back button, but there is no reason to keep multiple instances of the same activity on the stack. Is there a way to limit the number of instances of an activity in the queue to only 1?

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  • Encrypted volume automounting in Mac OS X

    - by nsayer
    I've had a need to create an encrypted volume on my mac for the company source code. The requirements are not terribly stringent: If someone can log into the machine as me, they win, but otherwise, they should lose. With that set of requirements, you can make it so that the disk is automatically mounted at login.

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  • Hibernate @DiscriminatorColumn and @DiscriminatorValue issue

    - by user224270
    I have this parent class: @Entity @Inheritance(strategy = InheritanceType.JOINED) @Table(name = "BSEntity") @DiscriminatorColumn(name = "resourceType", discriminatorType = DiscriminatorType.STRING, length = 32) public abstract class BaseEntity { and the subclass @Entity @Table(name = "BSCategory") @DiscriminatorValue("Category") public class CategoryEntity extends BaseEntity { But when I run the program, I get the following error: 2010-06-03 10:13:54,222 [main] WARN (org.hibernate.util.JDBCExceptionReporter:100) - SQL Error: 1364, SQLState: HY000 2010-06-03 10:13:54,222 [main] ERROR (org.hibernate.util.JDBCExceptionReporter:101) - Field 'resourceType' doesn't have a default value Any thoughts? Updated: Database is MySQL. I have also changed inheritance strategy to JOINED instead of SINGLE_TABLE. Help

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  • background image preload

    - by Bharanikumar
    Shall i use below snippet for preload background images, or else is there any snippet there , function preload(images) { if (document.images) { var i = 0; var imageArray = new Array(); imageArray = images.split(','); var imageObj = new Image(); for(i=0; i<=imageArray.length-1; i++) { //document.write('<img src="' + imageArray[i] + '" />');// Write to page (uncomment to check images) imageObj.src=images[i]; } } }

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  • Inheritance classes in Scheme

    - by DreamWalker
    Now I research OOP-part of Scheme. I can define class in Scheme like this: (define (create-queue) (let ((mpty #t) (the-list '())) (define (enque value) (set! the-list (append the-list (list value))) (set! mpty #f) the-list) (define (deque) (set! the-list (cdr the-list)) (if (= (length the-list) 0) (set! mpty #t)) the-list) (define (isEmpty) mpty) (define (ptl) the-list) (define (dispatch method) (cond ((eq? method 'enque) enque) ((eq? method 'deque) deque) ((eq? method 'isEmpty) isEmpty) ((eq? method 'print) ptl))) dispatch)) (Example from css.freetonik.com) Can I implement class inheritance in Scheme?

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  • Is there a FSRef in iPhone SDK or is there something that can be FSRef's alternative?

    - by unknownthreat
    The question may sound stupid, but the thing is this: I am learning how to use a Audio Queue, and the example I've taken (aqtest) has been a nice guide for me until I recently found out that aqtest is not for iPhone. (stupid me) I served around the Internet and found out that there is no FSRef for iPhone. If possible, I want to find a way to work around FSRef thinggie. So here comes the question: can I use something else instead of FSRef that exists on the iPhone SDK? Or am I missing something?

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