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  • I'm new to OOP/PHP. What's the practicality of visibility and extensibility in classes?

    - by marcdev
    I'm obviously brand new to these concepts. I just don't understand why you would limit access to properties or methods. It seems that you would just write the code according to intended results. Why would you create a private method instead of simply not calling that method? Is it for iterative object creation (if I'm stating that correctly), a multiple developer situation (don't mess up other people's work), or just so you don't mess up your own work accidentally?

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  • Is there an existing template for a new C++ Open Source project

    - by esavard
    I want to start a new C++ (Qt) Open Source project and I'm wondering if there is an existing template somewhere for files usually found in an Open Source project but that are not purely source code (README, LICENSE, CHANGELOG, etc.) I could probably find a popular Open Source project for inspiration but if there is some existing generic templates, I will use that instead. Thanks.

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  • Cache AJAX requests

    - by Willem
    I am sending AJAX GET-requests to a PHP application and would like to cache the request returns for later use. Since I am using GET this should be possible because different requests request different URLs (e.g. getHTML.php?page=2 and getHTML.php?page=5). What headers do I need to declare in the PHP-application to make the clients browser cache the request URL content in a proper way? Do I need to declare anything in the Javascript which handles the AJAX-request (I am using jQuery's $.ajax function which has a cache parameter)? How would I handle edits which change the content of e.g. getHTML.php?page=2 so that the client doesn't fall back to the cached version? Adding another parameter to the GET request e.g. getHTML.php?page=2&version=2 is not possible because the link to the requested URL is created automatically without any checking (which is preferably the way I want it to be). How will the browser react when I try to AJAX-request a cached request URL? Will the AJAX-request return success immediately? Thanks Willem

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  • How can this PHP/FQL code be modified to increase the performance and usability?

    - by Kaoukkos
    I try to get some insights from the pages I am administrator on Facebook. What my code does, it gets the IDs of the pages I want to work with through mySQL. I did not include that part though.After this, I get the page_id, name and fan_count of each of those facebook IDs and are saved in fancounts[]. Using the IDs ( pages[] ) I get two messages max from each page. There may be no messages, there may be 1 or 2 messages max. Possibly I will increase it later. messages[] holds the messages of each page. I have two problems with it. It has a very slow performance I can't find a way to echo the data like this: ID - Name of the page - Fan Count Here goes the first message Here goes the second one //here is a break ID - Name of the page 2 - Fan Count Here goes the first message of page 2 Here goes the second one of page 2 My questions are, how can the code be modified to increase performance and show the data as above? I read about fql.multiquery. Can it be used here? Please provide me with code examples. Thank you $pages = array(); // I get the IDs I want to work with $pagesIds = implode(',', $pages); // fancounts[] holds the page_id, name and fan_count of the Ids I work with $fancounts = array(); $pagesFanCounts = $facebook->api("/fql", array( "q" => "SELECT page_id, name, fan_count FROM page WHERE page_id IN ({$pagesIds})" )); foreach ($pagesFanCounts['data'] as $page){ $fancounts[] = $page['page_id']."-".$page['name']."-".$page['fan_count']; } //messages[] holds from 0 to 2 messages from each of the above pages $messages = array(); foreach( $pages as $id) { $getMessages = $facebook->api("/fql", array( "q" => "SELECT message FROM stream WHERE source_id = '$id' LIMIT 2" )); $messages[] = $getMessages['data']; } // this is how I print them now but it does not give me the best output. ( thanks goes to Mark for providing me this code ) $count = min(count($fancounts),count($messages)); for($i=0; $i<$count; ++$i) { echo $fancounts[$i],'<br>'; foreach($messages[$i] as $msg) { echo $msg['message'],'<br>'; } }

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  • PHP - Too many mysql_query("SELECT .. ") .. ?

    - by Mike
    Hey, I'm making an e-shop and to display the tree of categories and all the products with their multiple variations of prices I made like more than 150 mysql_query("SELECT ..."); queries on one page. (If I count the "while" loops). Is it too many, and if yes, can it have any negative effect? (ofc. it takes longer to load the data ..) Also can I anyhow achieve the effect of this code without doing it that way? $result2 = mysql_query("SELECT * FROM ceny WHERE produkt_id='$id' ORDER BY gramaz"); $result3 = mysql_query("SELECT * FROM ceny WHERE produkt_id='$id' ORDER BY gramaz"); $result4 = mysql_query("SELECT * FROM ceny WHERE produkt_id='$id' ORDER BY gramaz"); $result5 = mysql_query("SELECT * FROM ceny WHERE produkt_id='$id' ORDER BY gramaz"); while( $row2 = mysql_fetch_array( $result2 )) { } while( $row3 = mysql_fetch_array( $result2 )) { } while( $row4 = mysql_fetch_array( $result2 )) { } while( $row5 = mysql_fetch_array( $result2 )) { } Thanks, Mike.

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  • How can I use a php array in a mysql search query?

    - by ThinkingInBits
    I was going to use the scuttle solution on: http://www.pui.ch/phred/archives/2005/04/tags-database-schemas.html for handling searches on my website. I was wondering how I could take the search input from a user and turn it into a single query. For instance, let's say a user inputted 'blue dogs' in their search query... How could I dynamically update the query to include ('blue', 'dogs') in union and intersection queries?

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  • Keyboard- and mouse-event transparent widget

    - by Gajender
    When i click a button my main window i want it to become transparent to keyboard and mouse events, i.e. all keyboard and mouse events should pass to any windows below it as if that window is not present there. "Qt::WA_TransparentForMouseEvents" does not work here as this only make child windows transparent to keyboard and mouse events i guess. And my window is main window and i want to pass all event to any window on desktop not just parent window.

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  • Why does a PHP function with no parameters require parentheses?

    - by MarkRobinson
    I just spent 3 hours wondering why I couldn't start a session, then realised that I used: session_start; when I should have used: session_start(); I received no error messages at all! Perhaps then, I thought, it's a lazy way to differentiate functions from variables - but then remembered that it can't be as variables require a $ Can anyone tell me why parentheses are required then, and also why no error is given when they aren't used?

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  • Is there any way to achieve multiple inheritance in php?

    - by Starx
    Lets say I have a parent class class parent { } ..... This parent has three sub class class child1 { } class child2 { } class child3 { } and these child classes have further smaller parts like class child1subpar1 { } class child1subpar2 { public function foo() { echo "hi"; } } class child2subpar1 { } class child2subpar2 { } Now, how to sum this whole up like class child1 extends child1subpar1, child1subpar2 { } class child2 extends child2subpar1, childsubpar1 { } class parent extends child1,child2,child3 { } I need to execute the methods in its inherited classes and do something like this $objparent = new parent; $objparent - foo();

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  • PHP OOP Design Patterns: Should I Create two seperate classes for registration and form validation?

    - by Joshua Poshua
    So here's my problem: I have two types of registration, registration A and registration B, each will have some of the same fields and some different fields. I was going to create abstract class registration and both A and B would have their own classes that extend from registration. My question is, should I create a seperate Validation class with seperate A and B validation classes that extend? or is there a better pattern to use for something like this? Thanks

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  • What's the best way to format long strings of HTML in PHP?

    - by dclowd9901
    I know it's really a subjective question, but for best-practices (and readability), I can't seem to get a fix on the best way to format long strings of HTML. I typically do it like this: echo ' <div> <p>Content Inside</p> <div class="subbox"> <ul> <li>etc.</li> <li>etc.</li> <li>etc.</li> <li>etc.</li> </ul> </div> </div> '; But I still don't like the outcome, especially if this appears in the middle of a large block of code. It just feels messy.

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  • PHP's DOMXPath is stripping out my tags inside the matched text.

    - by Mint
    I asked this question yesterday, and at the time it was just what I needed, but while working with some live data I discovered that is wasn't quite doing what I expected. http://stackoverflow.com/questions/2571232/parse-html-with-phps-html-domdocument I gets the data from the HTML page, but then it also strips out all the HTML tags inside the captured block of text, which isn't what I want. (I might wan't to take some of the tags out, but not all, and this can be done later)

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