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I want my users to be able to view content on my website, and when they see content they like (My website randomly generates content using JQuery.load() ), I would like them to be able to store it onto a personal page that they have to log in to, to see.
My page loads content with the line:
$(".resultContent").load(skillList[skillChoice]);
The variable "SkillList" is assigned "skills.html #id"
the '#id' part is identifying a <div>, and that's the part I want to be stored, and I want the user to be able to store multiple parts of the page skills.html on their personal page.
This sounds fairly complex, but I was wondering if it's doable, if so, what language(s) would I need to use?
You will need to save those html snippet on the server, mostly likely in a database. This can be done by client-side javascript, an ajax POST. The server side can use any language.
Since you are saving some html on the server and will load that in a page. The server side must sanitize the html snippets for security.
When the html snippet is saved, the server needs to know who sends the request. That is the user needs to log in before or when s/he saves the content for later use.
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I explain my problem to you:
When I do PHP curls on some site or want to display the source code of the page element is missing a lot. I think some part is called by a script or something. Could someone help me view the entire code with Curl PHP.
To duplicate my problem go to Facebook or LinkedIn and right click on the page and "View the source code of the page", in this you don't see all the page content but when for example you right click and "inspect an element" You can.
Thank you in advance
CURL can't do this. It's not designed to render HTML or execute JavaScript.
A lot of the content on Facebook, LinkedIn, Twitter and many other pages is loaded through different ways. (like fetch()-requests or WebSocket-Events)
Some nodes you can see in the inspector are not part of the original document (which you are viewing with "view source" or curl downloads). What you see on the inspector is everything currently held in memory, which was partially (or completely) created with a scripting language.
This is basically done to
reduce the load on servers as it doesn't have to generate the whole page on every request
reduce traffic on clients and servers (no need to reload the header-data and/or scripts over and over again)
If you need data from a rendered site, you should either check if the website provides an API which gives you the data you are looking for or use one of the cli-rendering-engines from this answer.
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I was just wondering how do I make my website preview some info after the user searches for something stored in the database.
Basic approach for previewing user names as you type in a search bar. For this to work, you will need to use AJAX to query the server and also display the result as a preview for the user to click on if they want, without having to refresh the page.
User types 'Joe' into the search bar
The onChange() even is fired and you query your server with that the user has written "Joe". Keep in mind this query is via AJAX, so as not to force the page to reload.
Server side, you do a MySQL lookup of the table users, where the name is something like "Joe". SELECT NAME FROM USERS WHERE NAME LIKE '%what_you_sent_on_AJAX_request%' LIMIT 10;
The browser receives the response from the AJAX request and displays a nice dropdown with the output of the server. When the user actually click son this "previews" it is in that moment that you would actually reload to the page or take the user to a new page based on what they have clicked on.
That's a very basic approach for it.
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I want to INSERT data into my MySQL database.
After some research I found out I can use something called Node.js to do this.
But it seems to complicated for this small thing I want to do.
Is there a way to do this only with JavaScript, without Node.js?
Background: In my web-based iOS app I want to integrate a Favorite button. When the user clicks on the Favorite button on any site some data get stored in my MySQL database (user id, favorited webpage, title of webpage) and the Favorite button changes its color to signal it's favorite and put in the favorite section.
Following problem if doing this with PHP and not JavaScript: The user have to click the Back button twice to get out of this page, because reloading for storing in the database created a new entry in browser history.
Or is there another solution to prevent to the user have to click the back button twice to get out of this page?
Applications which runs on the end-users machines should never-ever have direct database access. Create a REST API with PHP (if you already using it) which handles the database operations and invoke it with JavaScript (this is the short explanation of AJAX).
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I wish to get the contents of a web page that requires me to be logged in (and one that I do not have control over: e.g. Twitter or Facebook), for example I can have Chrome running and I can see Ajax updating the page updating, but I want to periodically get the contents of this page and somehow save it. I don't mind leaving a computer running to achieve this...
You can use any http software to achieve this (like curl). Depending on the site it will take some investigation of how requests are made, in what order, the post data, the encryption, the user agent, cookies, headers, etc. etc.
It could take some time to find the right recipe.
Generally these sites don't want you to do this though, so don't be surprised when you run up against captcha or other clever methods from preventing exactly what you're trying to do.
Chances are, if you have to ask, you won't get in. But have fun.
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can my page Javascript read same page which itself is loaded? Like other parts of page are dynamically loaded by other provider. I have tried many things, google as well, but now I am in doubt that it is posible. Or it is.
Thank You!
If the page has loaded and the javascript you are running is client-side (which it should be), you should be able to access everything on the page via the document object. I would advise reading about the DOM to familiarise yourself with this.
EDIT: removed link
Server side code (whether written in JavaScript or otherwise) is not capable of determining the final rendering of the page in the user's browser.
You could build the entire page yourself (and you could use a headless browser, like PhantomJS, to do it) but that could give different results to a visitor's as you would have a different set of cookies, a different source IP address, and so on.