I'm trying to make an app on Android that send an URI that auto-populate the "RFC Emisor" and "RFC Receptor" of this web page:
https://verificacfdi.facturaelectronica.sat.gob.mx, if I'm correct those two inputs have the id of:
ctl00_MainContent_TxtRfcEmisor
ctl00_MainContent_TxtRfcReceptor
I already tried this but it didn't work:
https://verificacfdi.facturaelectronica.sat.gob.mx/&ctl00_MainContent_TxtRfcEmisor=123456789&ctl00_MainContent_TxtRfcReceptor=123456789
there is a way to achieve what I want?
The short answer is no. The browser won't automatically detect the URL parameter and pre-populate any form fields. A back-end PHP / ASP.NET page can read the value from the request and generate the HTML fields with the specified values. Alternatively, the page could use JavaScript to set the field values when the document finishes loading.
But all of this depends on changes to the target web page. If you do not have the ability to modify that page, I'm afraid there's very little you could do.
You might be able to duplicate the form on your own page, and send the form data to the target—effectively bypassing the form on the other page and 'faking' your own, but if the target system does some kind of validation to prevent posting forms across domain names, this probably won't work either. You may have create the form and process it yourself, replicating the entire form interaction programmatically when a user submits a form to your server. In any case, none of these options are particularly graceful.
Related
I am trying to understand if the following scenario is possible:
a .PHP page that has a form and inputs for the user to submit information
The page itself offers several different languages for the user to view it in
The user can change languages but the form and the inputs retain their values (if the user has added information) - so the page cannot be re-loaded (as it would lose the information)
I think this might be achieved using an Ajax solution but I'd appreciate any thoughts or advice.
You actually want to change the page, so reload might still be the best choice. Otherwise you need to change every string on the page with javascript, which can get tedious.
You can do the reload without loosing the data. Just add the language information to the form and send another parameter to avoid the actual action that would normally happen when you send the form on the php side. Render the page in the new language and insert the transmitted data in the form.
I have a database app written in PHP (jQuery/JS on the front end) that has bilingual labels/text. Currently one can only change one's language on a maintenance page (form submission, then PHP updates a session variable with their new language choice), but the users would like me to add a language pulldown that would appear in the corner of all pages. When the page contains a form, I don't want users to lose their partially entered data if they happen to change the language, so I need to save/restore the form data somehow. Is there an easy way to do that? I know I can use jQuery to serialize the form, but then what? Send that added onto the URL and pick it up in PHP? Then what? Write some routine to loop through the form fields and handle them properly (inputs, selects, radio boxes, etc. are all different)? It seems like there should be an easier way. I don't mind restricting myself to HTML5-supported solutions or adding jQuery plugins.
How about localStorage?
If user has filled any input fields, save them to localStorage and delete the data after user submits the form.
My suggestion is to:
Submit the Language and any wanted user data when changing language to the server using $.ajax or $.post
A very basic question. I have a form in one file form.php, I post it to another file processForm.php which does the server-side validation and processing. I am not using any framework.
Now, in case of form validation failure, I need to display the form again with all the values prefilled, without using a javascript history.back() from the processForm.php. What is the clean and proper way to do this so that I have all the posted values available again in form.php and can prefill them?
This is easy if the form submission happens to the same page, but this is how I got this and I cannot make the submission into the same page. So what would you do? Store the values in session? Curl post? Send the values using GET to form.php?
Why or why not? Please mention pros and cons.
Go read up on the MVC pattern.
You can't implement an interactive program without implementing a model, a view and a controller - the point is that your code should be structured to implement each of the three concerns as a single entity, be that as functions (or function trees), classes (or class trees) or files. And the three components within the pattern should be structurally grouped.
So if you want to the user to arrive at (say) second page after successfully filling in a form at first page, but to stay on first page when the form fails the validation, then a simple way to implement this would be to have first page implement the model view and controller, i.e. to both populate/generate the form and be the target for the form. Then if it receives a valid request sent from the form, send a redirect to second page.
This avoids the need for each page to load and process the MVC code for the preceding page as well as the current one - although that approach reduces the number of round trips to the browser which can help with performance.
NB using POST does not preclude the use of variables in the URL - indeed, I recommend using GET variables to indicate the data you wish to manipulate and POST variables to show how they should be manipulated.
I am trying to figure out a way that I can populate form fields on webpage for my users much like password managers do. The problem is that I am not the owner of the second webpage. I thought about using javascript with iframes but that doesn't work. I've tried using php to replace the form information adding values saved from my previous form. But I need to add info on a second form after the first one is submitted. After I submit the first page I am off my page and can't change anything else. So I'm kinda out of ideas and my knowledge is limited. Any ideas or input would be greatly appreciated. Thank you for your time and effort.
Cannot be done because of the SOP (same origin policy) enforced on JavaScript code. An alternative would be through XSS, other via a bookmarklet, and as a last choice trough a GreaseMonkey script.
GreaseMonkey may be your best choice, if the data to be filled in is from your website. Best choice because GreaseMonkey scripts can perform cross domain ajax requests.
I have a form which I'd like to share between 2 different websites. The form is submitted and the data is entered into the database.
Right now each website has its own copy of the script and its own database, so when I want to make updates to the form, I have to make those changes twice. Is there a way to share the form between the 2 websites, yet make it look like its being served by each website like normal. I'm also wondering if it's possible to make all the data go to one database.
The basic options would be...
You could use an html iframe to show the same form on multiple websites.
You could copy the form code between sites
If both websites are on the same server, you may be able to get a php include to include the form (this is possible in some cases even if they are not)
You can certainlly get the database to share information, just ensure the user you use to connect to it is allowed to connect from anywhere - not just localhost and you can connect to the database remotely.
You could include the form inside the other website as an iframe.
There is a short tutorial here on howto do that.
In case the form is displayed inside a whole complex page i recommend placing the form inside its own page and iclude it in both websites using an iframe.
depends what you are looking for, if you use the same process script behind it, do what Mouhannad said, and add a field "return_url" so you come back on the right page.
if it is that you want to send the fields to 2 different locations, create a proxy script and post it by a curl to both locations.
you can simply make both forms (in both websites) point to the same php page (in one of the websites)
<form action="http://www.example.com/action.php" ... >
Then check for the url reference to send the user back to the same page
The user won't feel any difference and you will have the database connection in one place
good luck!
Edit:
I thought your main concerns were the backend code since you mentioned the database. You could use iframes as suggested by the others but I always try to avoid them as much as I can. You can find lots of material online about why you should avoid them.
The other solution is use cURL to get the form's html code from the external page and keep using my above suggestion to change the action url path. This way you have the same code both for the backend and frontend. The downside is that you are making an additional request to get the form's html code which adds to the performance of your website - caching should improve that!
You can use CURL to simulate form submitting on another host, just send POST request with $_POST data.