webserver | 易学教程

How do I request a variable from the webserver using AJAX?

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问题 I have a loop in my JavaScript that is constantly checking the variable EventCounter , if eventcounter is zero then it proceeds to do an action then increment it ++, And then it proceeds to do nothing, until that variable changes, here is the code: EventCounter = {{eg.globals.EventCounter}}; for(var i = 0; i < n; ++i) { r = rects[i]; ctx.strokeRect((r.x*sc)|0,(r.y*sc)|0,(r.width*sc)|0,(r.height*sc)|0); window.rects = rects[i]; //console.log(EventCounter); if (EventCounter === 0) { console.log

Does $_SERVER[“SERVER_NAME”] and $_SERVER[“DOCUMENT_ROOT”] always aim to the same directory?

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问题 Do $_SERVER["SERVER_NAME"]; and $_SERVER["DOCUMENT_ROOT"]; always resolve to the same directory? Is there a scenario where they wouldn't? EDIT: To clarify, I KNOW these are not the same thing- I'm trying to establish only whether SERVER_NAME will always map to the DOCUMENT_ROOT. i.e., if by following each of them, one will always arrive at same physical location on the servers file system. 回答1: SERVER_NAME is internet vieable address - stackoverflow.com DOCUMENT_ROOT is absolute URL to

onClick events on li items, to change textFields

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问题 I am trying to implement an onClick event on li items. Every time this is event is triggered, it will change some text in a div to some preset text I have in javascript. However I cannot get it working. I have tried asking this on reddit as well. The code displayed bellow can be also found in a JSFiddle <body> <div id="header"> <h1>THE BODAK</h1> </div> <ul> <li><a href="history.php">Back</a></li> <li><a href="#" class="link" id="link" >Anthony</a></li> <li><a href="#" class="link2" id="link2

Deploying using Heroku

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问题 I am trying to deploy a Laravel application on Heroku. The problem is that every time I push changes to heroku, the old uploaded assets are lost. I am storing the images uploaded to a directory uploaded which are lost everything I push changes. Is there a way to prevent it? 回答1: Heroku's filesystem is not persistent. You need to store uploaded files somewhere offsite. Amazon S3 is a common choice. https://devcenter.heroku.com/articles/dynos#ephemeral-filesystem https://devcenter.heroku.com

sending client to client messages without server interaction

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问题 I am not sure if I can explain this correctly…. But is there a way to send a message from one client to another without bringing the server into interaction…. I mean the server will setup the channel between two clients and the clients will communicate using that channel only…. No server interaction what so ever… much of what like pubnub does… so basically what I am trying to do is build something like pubnub … I know it is possible… if I’m not mistaken that is….. So, what are the things I

web server memory leak issue

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问题 i'm create a dating website using symfony 1.4 (it's my first project using symfony). the problem is there server freezes if there is only 10 or less users online. i tryied optimizing my js, css, sprites using yslow i got grade A but still the problem is always there. that's why i think the way i build the application might be wrong so here is the website naijaconnexion.com i'm asking u for advices and things to do so i overcome this problem If i wasn't clear enough just ask, if you want

Using php5-fpm and nginx in a debian machine

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问题 I am trying to set up nginx server to run a php app in debian. I followed this tutorial among others. Most seems the same. My recent configuration is based on the link above. When I try to run this php script, <?php phpinfo(); ?> I get the same output on the browser instead of php info result. Kindly someone help me figure out where I went wrong. Note: My error logs are clean,contains details on nginx server start only. Thank you. 回答1: You might want to make sure php5-fpm is listening on the

Use android as webserver on local network [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . Ive seen some apps where you can open your computers web-browser, type in the local IP address to the android device, and access a homepage that hosts from the device. An example is this app: Finger Timer - play.google.com Does anyone know how this is done? Does Google have an API for this, or do you have any

Any risks in installing my own http server?

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问题 To save bandwidth and play around using PHP and all without any limits, I was thinking of installing my own web server. However, I was wondering if there any risks: Is my computer more exposed to security risks? If I set up my router not to forward any incoming requests to my computer, will it really have no security risks? Is it a wise solution to install XAMPP, so as not to clutter around with installing each separate server and stuff? Can I uninstall XAMPP and all its siblings whenever I'd

Can I create a socket application on a hosting service?

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问题 I need to develop a server side application that opens sockets and manages communication with multiple clients. Previous answers have told me this is possible using a single script file, which loops forever. Is this possible using only a PHP/Perl/Python hosting service? or would I need a VPS or shell access? Any help is appreciated since I've never worked with sockets before. Thanks for your time. 回答1: It would make your host very unhappy since their CPU time is valuable! If you use shared