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• How important is caching for a site's speed with PHP?

  - by benhowdle89

  I've just made a user-content orientated website http://www.humanisms.co.uk Its done in PHP, MySQL and jQuery's AJAX, at the moment there is only a dozen or so submissions and already i can feel it lagging slightly when it goes to a new page (therefore running a new mysql query) Is it most important for me to try and optimise my mysql queries (by prepared statements) or is it worth in looking at CDN's (amazon s3) and caching (much like the WordPress plugin WP Super Cache) which works by serving static HTML files when there hasnt been new content submitted. Which route is the most beneficial, for me as a developer, to take, ie. where am i better off concentrating my efforts to speed up the site?

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• Becoming a professional PHP programmer. How?

  - by Abaco

  Hello there, I'm working on my first professional project. The fact is that I don't know which are the best tools to produce something serious (I'm talking about web-develop through PHP): Are template engine like Smarty mandatory? Which one is "the best" (the most used, complete, documentated) At the moment I'm developing on Notepad++ (mostly because I find it useful and complete) is there a better development tool? Or is just a matter of personal taste? At the moment I'm studying JQuery and deepening my knowledge as regards CSS what other "mandatory" subjects can you suggest me? This is what I can think of at the moment, have you any other suggestions? Thank you.

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• Remove Duplicates from JavaScript Array

  - by kramden88

  This seems like such a simple need but I've spent an inordinate amount of time trying to do this to no avail. I've looked at other questions on SO and I haven't found what I need. I have a very simple JavaScript array such as peoplenames = new Array("Mike","Matt","Nancy","Adam","Jenny","Nancy","Carl"); that may or may not contain duplicates and I need to simply remove the duplicates and put the unique values in a new array. That's it. I could point to all the codes that I've tried but I think it's useless because they don't work. If anyone has done this and can help me out I'd really appreciate it. JavaScript or jQuery solutions are both acceptable.

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• .NET WebService Security who can see and use.

  - by user295734

  Trying to firgure out how to test the security of a WebService. Is there some way to search a site for webservices? I have 2 applications one has a webservice and the other a reference to that service. I let visual studio build the reference in the App_WebReferences folder. The webservice works, but i started wondering, can anyone access this service from any website? If so, how can i test this? How do you search a site for webservices? Could I use jQuery/JSON code from a simple site to access a webservice? I guess if it is not secure, how do you secure a webservice?

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• Firefox error for signalR, but does not effect anything

  - by anthonypliu

  I get the 2 following errors in firefox when using signalR and I do not know why: Timestamp: 10/15/2012 3:53:48 PM Error: The connection to http://localhost:81/signalr/connect?transport=serverSentEvents&connectionId=84a7f433-0cc8-4baf-93e9-d4c3ca968466&connectionData=%5B%7B%22name%22%3A%22Chat%22%7D%5D&tid=7 was interrupted while the page was loading. Source File: http://localhost:81/Scripts/jquery.signalR-0.5.3.min.js Line: 9 and Timestamp: 10/15/2012 3:53:50 PM Error: no element found Source File: http://localhost:81/signalr/abort?transport=serverSentEvents&connectionId=84a7f433-0cc8-4baf-93e9-d4c3ca968466 Line: 1 Everything seems to work fine with SignalR and my application works as expected across all browsers, but I just get these errors in firefox only. Any ideas?

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• How to force asp.net GridView control to wrap first row within <thead> </thead> tags

  - by burak ozdogan

  Hi, I want to use Christian Bach's tableSorter client-side table sorting jQuery plugin with my asp.Net GridView control. But the problem is, in the documentation it writes: tablesorter works on standard HTML tables. You must include THEAD and TBODY tags: And unfortunately asp.net renders my GridView only with tags and header row stays within as the 1st row. I have tried: dgvRate.HeaderRow.TableSection = TableRowSection.TableHeader; after calling .DataBind(); It only helped to have <TH></TH> within the header . But still everything is inside <tbody> Can I accomplish this, I mean moving my 1st row from <tbody></tbody> to <thead></thead> ? I do not want to add it manually on PreRender stage; I am sure this could be handled much simpler, isn't it? thanks

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• How can you prevent both jumpiness, and interrupting tweens with animated Flash buttons?

  - by Kevin Suttle

  This is something I've never been able to figure out. You've got a button offscreen you want to animate in. We'll call it 'btn.' You've got a hit area that serves as the proximity sensor to trigger btn's animation. We'll call it 'hitZone' (as to not cause confusion with the hitArea property of display objects). Both btn and hitZone are MovieClips. The listeners go something like this. import com.greensock.*; import com.greensock.easing.*; import flash.events.MouseEvent; var endPoint:Number = 31; hitZone.addEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.addEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); hitZone.addEventListener(MouseEvent.CLICK, onHitZoneClick); btn.addEventListener(MouseEvent.ROLL_OVER, onBtnOver); btn.addEventListener(MouseEvent.ROLL_OUT, onBtnOut); btn.addEventListener(MouseEvent.CLICK, onBtnClick); btn.mouseChildren = false; function onHitZoneOver(e:MouseEvent):void { TweenLite.to(btn, 0.75, {x:endPoint, ease:Expo.easeOut}); trace("over hitZone"); } function onHitZoneOut(e:MouseEvent):void { TweenLite.to(btn, 0.75, {x:-1, ease:Expo.easeOut}); trace("out hitZone"); } function onBtnOver(e:MouseEvent):void { hitZone.mouseEnabled = false; hitZone.removeEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.removeEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); trace("over BTN"); // This line is the only thing keeping the btn animation from being fired continuously // causing jumpiness. However, calling this allows the animation to be interrupted // at any point. TweenLite.killTweensOf(btn); } function onBtnOut(e:MouseEvent):void { hitZone.mouseEnabled = true; hitZone.addEventListener(MouseEvent.ROLL_OVER, onHitZoneOver); hitZone.addEventListener(MouseEvent.ROLL_OUT, onHitZoneOut); trace("out BTN"); } function onBtnClick(e:MouseEvent):void { trace("click BTN"); } function onHitZoneClick(e:MouseEvent):void { trace("click hitZone"); } The issue is when your mouse is over both the hitZone and btn. The button continuously jumps unless you call TweenLite.killAllTweensOf(). This fixes the jumpiness, but it introduces a new problem. Now, it's very easy to interrupt the animation of the btn at any point, stopping it before it's totally visible on the stage. I've seen similar posts, but even they suffer from the same issue. Perhaps it's a problem with how Flash detects edges, because I've never once seen a workaround for this.

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• How do I use Mercurial?

  - by Derek

  I'm assuming Mercurial is for having an updated website and it archiving the old stuff? Easy to test things and such? My question is, how exactly should I get started and can somebody give me a crash course in using Mercurial and using the following techs below: Notepad++ for coding FTP PHP/MySQL Jquery & other js libraries I use windows and would like to keep things fairly simple. I'm developing 1 website currently and want some kind of CVS system in place. Or should I just stick to my current edit file in notepad++ and upload via ftp method and make a backup copy of everything every once and a while? Any thoughts? EDIT: I'm doing http://bugtracker.gttools.com/public/wiki/bluehost/Mercurial right now in order to try and 'install' it.

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• Templating Engine Pros and Cons with Zend Framework

  - by manyxcxi

  I am getting familiar with Zend Framework (and MVC with PHP in general) for a personal project. I have previous experience with Smarty and have no major gripes with it, but I would like to use this project as a good in-depth learning exercise. Those of you familiar with different templating engines and ZF: Do you believe there are better templating engines than Smarty in conjunction with ZF and why? I would like to apply what I learn to the real world and production environments. The personal project will be fairly robust. User management, sessions, security, database interaction, form input, jQuery, etc.

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• Too many JavaScript and CSS files on my ASP.NET MVC 2 Master Page?

  - by Zack Peterson

  I'm using an EditorTemplate DateTime.ascx in my ASP.NET MVC 2 project. <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<DateTime>" %> <%: Html.TextBox(String.Empty, Model.ToString("M/dd/yyyy h:mm tt")) %> <script type="text/javascript"> $(function () { $('#<%: ViewData.TemplateInfo.GetFullHtmlFieldId(String.Empty) %>').AnyTime_picker({ format: "%c/%d/%Y %l:%i %p" }); }); </script> This uses the Any+Time™ JavaScript library for jQuery by Andrew M. Andrews III. I've added those library files (anytimec.js and anytimec.css) to the <head> section of my master page. Rather than include these JavaScript and Cascading Style Sheet files on every page of my web site, how can I instead include the .js and .css files only on pages that need them--pages that edit a DateTime type value?

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• Filtering foreign keys with AJAX in Django admin

  - by cnobile

  I have most of this figured out already. I have AJAX returning the region/state/province when a country is selected. The correct foreign key is saved to the database, however, when the record is viewed afterwards the selected state is not shown in the select nor are any states for the selected country. I understand why this is happening as, the admin view is not aware of the relation between the state and the country. So here is the question. Is there a hook in the admin view that will allow me to load the correct states for the country and set the selected attribute on the option in the select tag? Or how can I override the admin view for any forms that require the country and region/state/province set? I am using jQuery and Djando-1.1. Thanks

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• Cross browser (chrome/firefox) trying to get top-pos defined in percentage as pixels

  - by Cinaird

  I have a problem whit cross browser output, I'm trying to get the top and left css attribute of a div, but firefox gives me the exact pixel position and Chrome give me the percentage. Example: http://web.cinaird.se/pdf/test.htm CSS #mix{ position:absolute; top: 10px; left: 45%; background-color:#f0f; } jQuery css top: " + $("#mix").css("top") + " <br/>css left: " + $("#mix").css("left") Output Firefox (and IE8): css top: 10px css left: 267.3px Chrome: css top: 10px css left: 45% is there any way to get the same result for both (all) browsers? I would prefer to get a pixel value without any major calculation

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• System.Web.HttpException in asp.net mvc 2 on images and javascript files

  - by Rippo

  Hi I am getting the following errors reported by ELMAH on my asp.net mvc 2 site for javascript files, images etc. System.Web.HttpException: The remote host closed the connection I have done some research and it appears that the user/bot is clicking a link on the site before the page has fully loaded. Now this error never occurs on a controller action but always on a file that is on disk. e.g. /Content/CmsImages/logo.png /Content/CmsImages/MemberImages/Photo-001605.jpg /Content/jquery.tickertype.js So this means that all static files are being routed through the mvc pipeline. What options do I have?

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• Tag-like autocompletion and caret/cursor movement in contenteditable elements.

  - by jimeh

  I'm working on a jQuery plugin that will allow you to do @username style tags, like Facebook does in their status update input box. My problem is, that even after hours of researching and experimenting, it seems REALLY hard to simply move the caret. I've managed to inject the <a> tag with someone's name, but placing the caret after it seems like rocket science, specially if it's supposed work in all browsers. And I haven't even looked into replacing the typed @username text with the tag yet, rather than just injecting it as I'm doing right now... lol There's a ton of questions about working with contenteditable here on Stack Overflow, and I think I've read all of them, but they don't really cover properly what I need. So any more information anyone can provide would be great :)

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• database design suggesion

  - by Bharanikumar

  Hi , am going to start new travel site, I want some advise from guru's regarding database design , Things coming to picture are, Book taxi online , This is the core idea, So i like to implement lot of jquery,ajax stuff in my site , Main thing site must run veryt fast,safe,security, In mysql , which typw shall i use, MYISAM OR INNODB Which is best type for ajax works, fast,safe ,secure ,performance view . This is my demo site, Just look this site, i implemented some ajax stuff here, my-url In this site please choose the postcode in the taxifrom tab, It ask you value please enter, just enter nw7 , See How long it will take for response,some time no response and system goes to hang or idle mode, Also please look the diversion , select No diversion, There you will list of textbox, enter the nw3 then hit the search icon , See after 80seconds only , you will get response from DB, See this too bad response ... This is DB , my Database type if myisam ,no idexing , no fulltext and nothing...no constraints, So please advise me , which database type i choose, Myisam or innodb, Thanks Bharanikumar

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• How to manupilate data in VIew using Asp.Net Mvc RC 2?

  - by Picflight

  I have a table [Users] with the following columns: INT SmallDateTime Bit Bit [UserId], [BirthDate], [Gender], [Active] Gender and Active are Bit that hold either 0 or 1. I am displaying this data in a table on my View. For the Gender I want to display 'Male' or 'Female', how and where do I manipulate the 1's and 0's? Is it done in the repository where I fetch the data or in the View? For the Active column I want to show a checkBox that will AutoPostBack on selection change and update the Active filed in the Database. How is this done without Ajax or jQuery?

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• javascript table - update on data request

  - by flyingcrab

  Hi, I am trying to update a table based on a json request. The first update / draw works fine - but any subsequent changes to the variables (the start and end date) do not show up - even though the json pulled from the server seems to be correct (according to firebug). AFAIK the code below should re-initialize everything - no sure what is going on (I'm using the Google vizulization api)? function handleQueryResponse(response) { if (response.isError()) { //alert('Error in query: ' + response.getMessage() + ' ' + response.getDetailedMessage()); return; } visualization = new google.visualization.Table(document.getElementById('visualization')); visualization.draw(response.getDataTable(), null); } One more thing: I'm working on a page that displays textbased tables and currently trying to decide between the google table (viz api) and a jQuery alternative I came across jqGrid any good ones I am missing?

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• Problems crossing the boundary between protected greasemonkey execution space and the unsafeWindow l

  - by Chilly

  Hi guys. Here is my problem: I've registered some callbacks into a Yahoo event driven webpage (betfair.com market views) and am trapping the betsPlaced events with a handler. So far so simple. Next stage is to get the event back into greasemonkey land, and while I know that from greasemoney space you can call unsafeWindow.stuff, there is no reverse operation (by design). So if I want to send the contents of the event over, say, a cometd queue, my carefully set up jquery, greasemonkey, YUI2, betfair environment fails by telling me that unsafeWindow processes cant call GM_ajax stuff. This is obviously safe and sane, but it basically stops me doing what I want to do. Has anyone tried doing this (ignore the cometd stuff, just general ajax calls) and succeeded? I've had a look at pages like this: http://wiki.greasespot.net/0.7.20080121.0%2B_compatibility but it doesnt appear to work for all the calls.

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• Safari javascript cookie issue

  - by Aaron Moodie

  I've hit a bit of a weird issue in Safari in regards to setting a js cookie. The cookie itself is just a rgb colour value, which gets set using .click(), and is working fine in Chrome and Firefox, yet in Safari the value of the cookie is incomplete, showing up as rgb(193 instead of rgb(193, 184, 76) as the other browsers do. The jQuery function I'm using to set the cookie is: $('.project_link a').click(function() { var link_colour = $(this).css("color"); document.cookie = "colour="+link_colour+";expires=;path=/"; });

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• x.lastChild.nodeValue

  - by Zeb-ur-Rehman

  <html> <head> <script type="text/javascript" src="jQuery.js"> <script type="text/javascript"> x=document.getElementByTagName("p"); document.write(x.lastChild.nodeValue); </script> </head> <body> <p id="intro">Hello World 1!</p> <p id="intro">Hello World 2!</p> <p id="intro">Hello World 3!</p> </body> </html> Why doesn't the above code work. I want to show [Hello World 3!] by using the statement documetn.write(x.lastChild.nodeValue()); Thanks in advance...

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• Using numeric values to select item from a dropdown box with JavaScript

  - by Shyam

  Hi, I have a multitude of dropdown boxes within my webpage. One of these dropdown boxes is used for a single selected value out of a list of options. <SELECT id="Box0" name=""> <OPTION value="0">none</OPTION> <OPTION value="1">first</OPTION> <OPTION value="2">second</OPTION> </SELECT> How can I add an event to this section, so when it is in focus, I could use numeric keys like 1,2.. to select an option instead of using the mouse or arrow keys for selecting an option? For clarification: if I press "1" on my keyboard, the selected value would become "first", with "2" the selected value becomes "second". I choose not to use a library/framework such as JQuery/Mootools. Thanks,

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• building a website

  - by Ant

  Not sure if this is the right place to post this, or if it should be under programmers.stackexchange... Anywho, a couple of my friends run a business and they asked me to build them a public website. It will only be used for information about the company with soe pictures. No transactions will be involved. Right now I work for a company where I build internal websites, and do alot of backend programming in C#. I understand html, css, jquery, etc. so I feel like I am completely capable of building a website for them. However, I do not know all the basic knowledge to building one. For example, where should we host the files, what type of security issues do I need to be aware of, what's the best software to use for developing websites (I use visual studio at work), where can I find some design techniques, etc. Any help is appreciated.

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• GZipping CSS and JS files

  - by Ryan Giglio

  I'm using YSlow to improve the speed of my site, and I'm having trouble with the "compress components with gzip" grade. I have this in my .htaccess file: SetOutputFilter DEFLATE AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css application/x-javascript But YSlow is saying There are 4 plain text components that should be sent compressed * http://crewinyourcode.com/css/reset.css * http://crewinyourcode.com/css/inner-pages/index.css * http://crewinyourcode.com/script/css/jquery-ui-1.8.custom.css * http://crewinyourcode.com/js/inner-pages/index.js How can I gzip the css and js files? Also...I don't have access to the httpd.conf file.

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• PUT parameters not working in python / google app engine

  - by magegu

  hi, i'm working on a simple RESTful webservice with python with the webapp framework on the google app engine. Basically i'm sending all request via AJAX/jquery - for POST it works like a charm, but when I'm sending data with PUT, the parameters are empty / not processed. this is my PUT: $.ajax({ type: "PUT", url: "/boxes", data: { name: this.name, archived: this.archived }, success: function(msg){ } }); firebug saids i'm putting: Parameter application/x-www-form-urlencoded archived false name 123112323asdasd but using this python code: from google.appengine.ext import webapp from google.appengine.ext.webapp import util, template from google.appengine.ext import db from google.appengine.api.datastore_types import * from django.utils import simplejson as json import cgi import datetime class BoxHandler(webapp.RequestHandler): def post(self): #working print "test" self.response.out.write(self.request.get("name")) def put(self): print "test" #not working self.response.out.write(self.request.get("name")) will just return test Status: 200 OK Content-Type: text/html; charset=utf-8 Cache-Control: no-cache Expires: Fri, 01 Jan 1990 00:00:00 GMT Content-Length: 0 so .. hm, is there anything i'm missing here? cheers, Martin

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• Drag and drop an image from desktop to a web text editor (implementation in javascript)

  - by fatmatto

  I tried to write reasonably short title but i failed i guess.. Hi everybody here's what i'm trying to do: I want to implement a web text editor able to recognize when the user drag a image file over it's editing surface and it automa(gically) starts the upload and insert the image near the cursor position. In other words i don't want the user to do the usual "insert-image-browse-ok". Atm i am not very good at javascript ... i know JQuery but i have not a clear idea about how to implement this... i don't know if there's an event handler able to help me in this situation... if not then there should be i think or web apps would miss some kind of interactivity. I've heard miracles about HTML5 could it help me? I've seen such things in Google Wave but that surface doesn't seem to be a form field... google lab's black magic i guess.... Thank you in advance.

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