I'm not sure if I worded the title correctly but here it goes...
This site: http://www.megavideor.com
In the big input field you can enter http://www.megavideo.com/?v=C6IJJDU6 and then click Load Video, and it will load the video on the right hand side.
I want to make a script where I can enter the field and submit it automatically with a url.
Example:
http://www.mydomain.com/SCRIPT.PHP?url=http://www.megavideo.com/?v=C6IJJDU6
And the above link would automatically enter the url and take you to the page with the video ready to watch.
Can anyone tell me how this is done or direct me to what this sort of script is called, so I can try googling it.
Thanks!
When you enter data into the url like that it's GET data, not POST data.
The form uses POST data, but it can be changed to use GET data as well.
If you want to keep your forum as is, use $_REQUEST in your php instead of $_POST.
$_REQUEST contains both $_GET and $_POST values.
Related
Question about GET and POST in PHP. i wonder what is the difference between POST and GET and when do you use them respectively?
so as far from i tried, GET can also show the data in the link.
for example, the name of my link is Localhost/index.php then inside my php file is an input box and a submit button. if for example i use GET, if i click the submit button, it will take the data i put in inputbox(for example, name) and add it to the link. so the link now is Localhost/index.php/?name=Tina i think this is how GET works. but if i use POST, it will not show the input data in the link and it will remain Localhost/index.php. (atleast, from what i practice)
i wonder what are other differences between the two and when they should be use? for example im making a website(ex: sign up website) that will take information and send it to a database in MySQL..or the webpage should carry over the from this webpage to another webpage. should i use GET or POST?
You are kind of overthinking it. It is as simple as:
POST - used to post(send) data to the database.
GET - used to get(fetch) data from the database.
So in the case of the form, what you need to do is a POST request, so you send the data to MySQL. And in order to retrieve that data, you will perform a GET request.
See this https://www.geeksforgeeks.org/http-get-post-methods-php/ for a comprehensive explanation.
Keeping it very short:
You never-ever should pass any sensitive information over GET method, because it's visible by logs, by your internet provider/router, third parties.. such as google analytics and more.
A common use of GET is when you allow users to change the parameters of a page they see.. i.e. search parameters or the number of products per page.
POST when you want to send information to the server "privately" and (preferably) with a nonce to make it sendable only once.
But regardless of a method - POST or GET - sanitise, sanitise, sanitise.. that is what you need to really worry about. User input should not be accepted as is when you receive it, kinda #1 rule on the internet.
I am fairly new to using PHP so bear with me if this is a stupid question
I have a form that comprises a number of radio buttons, the action is set to redirect to the same page and the method is GET.
A click on a radio button gets data from the database. The data is used to redisplay the same page with changed content.
The page URL has PHP arguments in it like the example below
localhost/basesite/mypage.php?itemID=8&name=city&number=9
When I access the page and click on a radio button I get a page with “no arg” because the URL reads
localhost/basesite/mypage.php?number=6
Two of the arguments are missing and that the last one is incorrect.
With no change whatsoever to the code except using ”post’ instead of “get” the whole thing works flawlessly.
I have used
form action= "" method=“get”
form action= “#” method=“get”
and many other actions using $_SERVER["REQUEST_URI”], $_SERVER['QUERY_STRING'] etc and combinations thereof.
Those that worked with POST did not work with GET.
I do not need to use POST as data is not written only retrieved from the database so I have no worry about data being written more than once.
If I have to I will use POST but if the user refreshes or uses the back button then the usual warnings will be issued by the browser.
What am I missing?
you should you use $.get which is a jquery method.
First, you should share your full source code for better understanding your problem. And also you have to use post method to submit a radio button values to get some value from your database. Form data can be submitted using these two methods (get and post). Both are used for the same purpose, but stands apart under some specifications. As in GET method key values are passed in the Url while in POST, the information transfers in a hidden manner.
Sorry folks. It was a badly formed URL due to me not fully understanding how to set a hidden element.
I just setup some pagination for a search, and the search uses POST variables to define what to search for etc. In my URL I can set the pagination offset like this search/OFFSET, and my links in the pagination link there correctly. However, when I click a link all POST variables vanish even if I explicitly set them so I can use them in the next script. I'm using codeigniter and I have GET turned off and really don't want to store these 5-6 values in a session since then it will get all clumsy.
Does clicking a link fully reload the page and delete POST variables?
Thanks
Yes, clicking a link creates a GET request so wouldn't keep any of the POST data. Although it's technically possible to do so with javascript, that's a bad idea.
This is an entirely appropriate use of GET, please read this fuller explanation.
Yes, clicking a link removes all the POST variables.
Do you have access to change your php page that receives the request? You might want to adjust your variables there to accept either GET or POST:
$defaultvalue='';//change this to '' or NULL or whatever you want
$searchQuery = (isset($_POST['s']) ? $_POST['s'] : (isset($_GET['s'])?$_GET['s']: $defaultvalue));
Then your php page will be better equipped to handle either GET or POST
POST data will only be present during the original request (i.e. it does not persist between requests). If you want data to persist, use sessions. However, it is common practice to use GET for search queries and pages.
You could use an incredibly ugly workaround and set a form full of hidden fields to submit when you click a link. I really wouldn't recommended it though.
You should be able to create a form that submits some set of post variables to the action parameter with the get variables. So the form should submit a post request to http://www.somedomain.com/FormSubmit.php?pag=1&sort=asc This would submit the post values of that form along with the get values of the string. If you can change your link to a form button, you should be good to go.
I am trying to do something really basic but can not seem to find a tutorial for it.
I have created a simple web form using HTML what I need todo is create a php file that will read the web form, open a new browser window (or display in same page) the contents of the web form, do toy guys have any tutorials on this?
Many thanks
Chris
I'm sure many will post different links to tutorials that they like, but I thought I would just give you the basic. The key parts to the form are the method and action. The Method attribute tells ths browser how to submit the data, either through GET or POST. The action attribute tells the browser where to submit the form. (In your case it will be, somepage.php) If you ever need the form to submit back to itself, you can here use explicitly type the page name or you can use use PHP to dynamically insert the page name. Finally, make sure that all your form fields use the name attribute, as this is how php will access the elements.
On the php side of things, your form variables will be stored in either $_GET or $_POST depending on how on method you used to submit your form. For example, assume you have a input element of type text with the name 'FirstName'. Within php you can access this by doing
<?php
var firstName = $_GET['FirstName'];
?>
This should be enough to get you started. Be sure to check out the php docs and the other tutorials listed on this page for a more details.
Please look at this tutorial: http://www.learnphp-tutorial.com/HtmlForms.cfm
And you can find many more tutorials if you search it on Google.
This should help : http://www.php-mysql-tutorial.com/wikis/php-tutorial/php-forms.aspx
I have a page. The user submits the page and sends it to a PHP results page. It works fine. Now, I want the results page to link to another page, and for the elements on that page to depend on what was on the results page. I know how to pass form variables to another page, but I don't know anything about passing non-form variables.
From my searching on the web, my best guess is that I should be passing by URL. Is this correct? If so, a possible problem: the page I want the results page to pass to will have a form, and the user will go to yet another results page by clicking submit (the form data will be sent by POST). Can I send the non-form data (the old results page variable) along with the form data, if the user is going to the other page using POST?
I strongly suggest using sessions. It's not that hard to learn, php makes it VERY easy using http://php.net/session_start and the $_SESSION variable.
Advantage is that you will not have to submit a form on every click, and no information will be displayed in plain text in the URL.
There are several options. However, the easiest may be to simply pass the data on using hidden input fields.
Other options would be using the session, storing to a database between forms, or some combination therein.
If you are going to use POST to go to the next page the most simple option is to include the data you want to send along using an input type="hidden" element in your form.
You might consider using a session to pass the data along.
You can embed the non-form data into the second form as hidden fields. To make sure that it is also passed in the link, you can just add it to the URL as a query string, like:
http://..../blah.php?var1=val1&var2=val2
as long as the data you're passing can fit into a URL. Be sure to urlencode() anything you're appending to the URL.
<?php
start_session();
$_SESSION['Foo'] = 'Bar' // Add stuff here.
?>