I run my own game, and I can use PHP to get an updated value of how many users are online at a current time. I want to create an updating string of text that shows how many users are online. In game it's programmed to update the value every 20 seconds.
The problem is that my website can only use HTML, and that's about as far as it goes for how much customization I have. The other option is Flash, which I have zero clue on how to use.
The HTML doesn't seem to work with PHP inside of it, so I'm really unsure of how to approach this.
I just need the html to grab the text that outputs from a PHP url from my website, basically in the same way you use html to grab an image. It's 100% readable, and it's just a single string that I need to grab to show how many users are online. : ( Is there any way to do this or am I out of luck?
You can try using <iframe src="#url"></iframe> or <embed src="#url"></embed> if you want this to be done using only html.
Related
I am trying to make it so users can enter text files and a short message near it and it will be visible for everyone. I am using PHP and SQL (MariaDB/MySQL for the database) and I want it so every like ten for example inputs it will make a new page. So for example if there is ten files up on the page then if someone puts another one in it will automatically make a page two and have the oldest file submitted be there. How can I do this. I have seen other sites use a GET method and have it be something like ?page=2 . How can I do this myself?
What you're looking for is "Pagination".
Pagination using MySQL LIMIT, OFFSET
Though that can look a bit scary at first. However, if you use a framework such as Laravel it can easily be done, see:
https://laravel.com/docs/8.x/pagination#introduction
I want to search on website pragmatically using PHP like as we search on website manually, enter query on search box press search and result came out.
Suppose I want to search on this website by products names or model number that are stored in my csv file.
if the products number or model number match with website data then result page should be displayed ..
I search on below question but not able to implement.
Creating a 'robot' to fill form with some pages in
Autofill a form of another website and send it
Please let me know how we can do this PHP ..
Thanks
You want to create a “crawler” for websites.
There are some things to consider first:
You code will never be generic. Each site has proper structure and you can not assume any thing (Example: craigslist “encode” emails with a simple method)
You need to select an objective (Emails ? Items information ? Links ?)
PHP is by far one of the worst languages to do that.
I’ll suggest using C# and the library called AgilityHtmlPack. It allows you to parse HTML pages as XML documents (So you can do XPath expressions and more to retrieve information).
It surely can be done in PHP, but I think it will take at least 10x time in php compared to c#.
I am trying to make myself a homepage, for my personal use only and what I want to do is to display different information from different websites that change few times a day. i.e. News, weather and such. I want to have my favorite information always on sight without the need to visit many pages. As many of websites don't load within an iframe which was the first thing I tried I figured PHP might be able to help me.
So what I need to do to is to get the contents of a DIV and place it within my page with PHP.
The DIV on the source page is generated on the server but it always have the same ID.
example:
<div id="nowbox">
<a href="http://www.seznam.cz/jsTitleExecute?id=91&h=19331020">
<img width="135" height="77" src="http://seznam.cz/favicons/title//009/91-JrAEVc.jpg" alt="" /></a>
<div class="cont"> <ul> <li>
<strong>Sledujte dnes od 20.00 koncert Tata Bojs</strong>
<p>Nenechte si ujít tradiční benefiční koncert kapely Tata Bojs. Sledujte představení na Seznam.cz</p> </li> </ul>
</div>
</div>
so the ID of the DIV is "nowbox" and I need to copy all that is within it and put it in my page.
So far I was only able to use this
$contents = file_get_contents("http://seznam.cz");
and view all contents of the page but I have no idea how to strip everything and leave only the needed DIV.
I am not very experienced in PHP so I would be very grateful for any help, the easier to understand the better.
EDIT:
THX for answers. Basically I just wanted to get the code I posted as example to a variable so I could ECHO it somewhere on my page. The problem is that the code changes as does the rest of the website and only some things remain the same i.e. the DIV ID.
Definitely NOT the most elegant solution (even I know that but as the website is for my purposes only it shouldn't matter) but one that I successfully managed to get to work is that I got the whole page with:
$contents = file_get_contents("http://seznam.cz");
and then counted the number of chars to a specific unique position in the code with STRPOS plus/minus a static number of characters that I could count manually. Then I split the string into ARRAYs and discard the parts I don't need to get the beginning of the code in the beginning of a string and then use the same method to cut the string after the code ended.
If you want to do this server side, I suggest you to use phpquery
require('phpQuery/phpQuery.php');
$doc = phpQuery::newDocumentFileXHTML('http://seznam.cz');
$html = pq('#nowbox')->htmlOuter();
I'm unable to fully understand what you want to achieve and why, but you can do this both through the server and client, first, the client side way:
Well, what you're asking is for is to extract parts of the DOM, using javascript + jQuery on the client side you can achieve it this very rapidly, simply by calling the $.load("/mypage #nowbox") function.
This could be achieved on the server side aswell using php by using any DOM manipulation library, either one that is bundled within (DOMDocument) or one the easier to use libs (which is a bit memory leakish), simplehtmldom
So there you have it, options for both client & server ways to implement, select which one suites your needs best.
please notice that any CSS ruling will not be available by either method, as the css won't be loaded in your dom.
Good Luck!
Okay. So I don't have any example code to show, but after doing a bit of research and learning the basics of PHP, I think the answer to my question should be pretty simple.
Here is the scenario, as I would like it to be:
On the homepage there will be several team names, with scores next to them. Like "house-points" in Harry Potter.
Below the score is a small text-field. Below that is a submit button.
The user will put a number in the text-field, press submit, and that number will be added to the team's total score.
NOW. I know how to achieve all of that with JavaScript. Easy. What I want to know IS:
How do I make that new number (the new score total) STAY there. I need to permanently alter the HTML when that submit button is pressed.
All I know is that I need to use PHP. I know the basics of PHP, so whatever the answer is, just throw it at me and I'll figure it out.
Sounds like what you want to do is submitting forms. First drop the JavaScript, you won't need it. What you need is to put your text fields in a form and when you submit you can fetch your values with $_<GET|POST|REQUEST>['<name_of_field>'].
Then you will need to store it somehow. The best way to do it is to use a database like MySQL or MongoDB to store it, but it could be a bit tricky if you are just learning this, so maybe you would like to stick to files. You could do this with INI files and PHP's INI functions.
Lastly you will need to print out the correct values to the website. Now this is easy: Just edit your HTML file to do something like
<?php echo $score['team1']; ?>
for each team after retrieving the correct values at the top or something. (Don't forget to rename the HTML file to .php as well).
Now you should be all set to save your scores. =)
If you mean really permanent you'll have to send it to a database via Ajax (combination of PHP and Javascript). OR write it to a text-document, which is less good.
I have a html site. In that site around 100 html files are available. i want to develop the search engine . If the user typing any word and enter search then i want to display the related contents with the keyword. Is't possible to do without using any server side scripting? And it's possible to implement by using jquery or javascript?? Please let me know if you have any ideas!!!
Advance thanks.
Possible? Yes. You can download all the files via AJAX, save their contents in an array of strings, and search the array.
The performance however would be dreadful. If you need full text search, then for any decent performance you will need a database and a special fulltext search engine.
3 means:
Series of Ajax indexing requests: very slow, not recommended
Use a DB to store key terms/page refernces and perform a fulltext search
Utilise off the shelf functionality, such as that offered by google
The only way this can work is if you have a list of all the pages on the page you are searching from. So you could do this:
pages = new Array("page1.htm","page2.htm"...)
and so on. The problem with that is that to search for the results, the browser would need to do a GET request for every page:
for (var i in pages)
$.get(pages[i], function (result) { searchThisPage(result) });
Doing that 100 times would mean a long wait for the user. Another way I can think of is to have all the content served in an array:
pages = {
"index" : "Some content for the index",
"second_page" : "Some content for the second page",
etc...
}
Then each page could reference this one script to get all the content, include the content for itself in its own content section, and use the rest for searching. If you have a lot of data, this would be a lot to load in one go when the user first arrives at your site.
The final option I can think of is to use the Google search API: http://code.google.com/apis/customsearch/v1/overview.html
Quite simply - no.
Client-side javascript runs in the client's browser. The client does not have any way to know about the contents of the documents within your domain. If you want to do a search, you'll need to do it server-side and then return the appropriate HTML to the client.
The only way to technically do this client-side would be to send the client all the data about all of the documents, and then get them to do the searching via some JS function. And that's ridiculously inefficient, such that there is no excuse for getting them to do so when it's easier, lighter-weight and more efficient to simply maintain a search database on the server (likely through some nicely-packaged third party library) and use that.
some useful resources
http://johnmc.co/llum/how-to-build-search-into-your-site-with-jquery-and-yahoo/
http://tutorialzine.com/2010/09/google-powered-site-search-ajax-jquery/
http://plugins.jquery.com/project/gss
If your site is allowing search engine indexing, then fcalderan's approach is definitely the simplest approach.
If not, it is possible to generate a text file that serves as an index of the HTML files. This would probably be rudimentarily successful, but it is possible. You could use something like the keywording in Toby Segaran's book to build a JSON text file. Then, use jQuery to load up the text file and find the instances of the keywords, unique the resultant filenames and display the results.