PHP - Automatically Submitting/Running A Form - php

I recently posted a question about php forms with a checkbox that simply echoed the result and it was answered.
However i now have the question how can i automatically submit the form so rather than waiting for the submit button to be clicked once it would automatically echo the result.
I would like a way to run the form once because i wanted to make far more complex forms and would like to display the initial result right away.
The other thread:
PHP - Form Elements Resetting
Many thanks

Related

Submit an action without refreshing or redirecting the page [duplicate]

This question already has answers here:
jQuery Ajax POST example with PHP
(17 answers)
Closed 7 years ago.
So, I have a contact form on one page (let's call it send_now.php or example.com/send)
Once the form is filled out and submitted, then an email is sent to a certain user while the page is directed to example.com/it_is_sent page which contains a sent confirmation based on confirmation.php.
I would like to know how to change it so that everything is done on example.com/send/ page without refreshing or redirecting the user to the next page.
Here is what I mean.
So, in /send/ page, an user fills out the form and click send. Then without redirect the user to /confirmation/ page, the confirmation is shown on /send/ page without redirecting the user, so everything happens within the same page.
Is there a way to do that? what is the general concept of doing things like that?
or, can the form be submitted within the same page without refreshing the page?
Thanks!
Take a quick search around the net for "jquery ajax form submit". The term I think you're looking for is Ajax. It is what allows you to have JavaScript send off data to a PHP script without refreshing the page.
You build your form like normal, and attach a jQuery click event to the form or submit button. The jQuery/Ajax function takes the data from the form and sends it over GET or POST to your PHP form.
Whatever your PHP script outputs is received by your jQuery/Ajax function. I like to use json_encode on a PHP Array for the PHP script output. In JavaScript I can then easily work with the results as an array of values.
Depending on what's in the Array or output depends on how your JavaScript should react. Output could be as simple as a 0 or 1, true or false, or a json Array or values like I usually do. I'll usually include at least error=true/false.
You could have the PHP script output be displayed in a Div once the Ajax success function fires.
You could also use jQuery load() to load another page into a Div upon success. The possibilities are endless when you combine it all.
You can easily find code samples for this all over StackOverflow and tutorials on the rest of the Internet. You're looking for "jQuery Ajax Form Submit to PHP", maybe even with MySQL?
This technique makes buttons that make instant changes possible. Once you're done with this project, look into websockets if you really want to see how instant the web can be.

In jquery what is the signifigant difference in usng .submit and .click to handle a form [duplicate]

This question already has answers here:
Difference between handling $("form").submit or an <input type="submit"> click event?
(3 answers)
Closed 9 years ago.
I understand how
$(".button").click(function() {
and
$('#form').submit(function(e) {
work differently.
One happens when when something is clicked, and the other happens when the form is submitted.
But what is the significant difference in the two? I mean why would you want to handle a form when the submit button is clicked, and why would you want to handle a form when the form is submitted?
What I am asking is, when submitting a form with the post method. What would be the advantage of using one of these methods over the other? Why would you want to use one over the other?
What times would you use .click or .submit?
What are the advantages / disadvantages to the two? Which one if more commonly used?
Please don't split hairs, take my question for what it is worth. I explained it the best O could. Please don't say well technically it doesn't work like that at all..
Submitting a form tells the browser to make a request to the url in the action attribute using the method in the method attribute.
<form method="post" action="http://somewebsite/somescript.php">
However, the only accepted methods in a form are GET or POST, so you wouldn't want to submit a form if you wanted to make an ajax PUT or DELETE request. You'd instead listen for a click event and make a PUT or DELETE request with javascript (probably jquery) when the button is clicked.
The form submitting has been around since before ajax. While it still works perfectly well, the listening for click events and firing your own ajax calls is quickly becoming more popular as you have more freedom in the type of request you make.
Originally, the click event was added to do something OTHER than post a form. The Submit event was used for that as it passed all the form variables to the page specified in the action part of the tag. click and .submit events reflect directly the core HTML functionality that been around since at least HTML 3.2 to the best of my awareness.(When I first learned HTML.)

HTML form within another form

I am new to html, I would be really glad if you can help me with this.
I have a web page where there is a list and some other text inputs and buttons. This option list can be populated by clicking the "add" button in the page, this add button is to direct to another page and in that page there are some chekboxes, those which are checked are loaded back to the main page,(where I have the list) .
At the end data in the main page needs to be loaded to the database, (what is in the list and in the text inputs).
Since I'm new I just know little about php and html, I thought I should have a form within a another form(form to "add items", form to load to the database) and it is not possible in html. Can anyone suggest the best way to do this? Do I need to use javascript?
Why can't the extra inputs (the ones that would be in the second form) be part of the first form? I think the question will become clearer if you post a sample form so we can see the relationship between the two forms.
But overall, since you're ultimately only submitting one form, then maybe all the inputs belong together. If what you're calling the second form isn't supposed to be visible right away, you can still have it be part of the same form, but only reveal it when needed.
Again, some sample data would help to understand the exact context of your question.
in php if you use input name="somename[]"
for a number of input elems
you will get an array in $_POST['somename'] and access all the values.
I think what you're after - if I understand you correctly - is ajax. Ajax allows you to asynchronously send data to/from another script without leaving the current page. This is accomplished using JavaScript. In your case I think what you need to do is set an onclick event in JavaScript to a button:
<input type="button" onclick="javascriptFunction()">
You can read more about ajax here:
http://www.tizag.com/ajaxTutorial/ajaxform.php

how to submit a form from a php script [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Auto Submitting a form (cURL)
I have a form which submits to a php script. In this form I need to collect all the $_POST data and then post this on to another form (the reason for this isn't really relevant but there is a good reason).
My question is once I've collected all the data from the initial form submit, sanitised it and assigned it all to variables how do i then package it all up to send to the next form? The second form is expecting a $_POST with hidden fields with particular name attributes....so how do i do this? do I build the actual html and submit that somehow to the second form or do I buld some sort of array and send that?
hope this makes sense. Kind of hard to put in to words.
You can generate form and submit onLoad by Javascript
You can use curl to send POST query (from your server but not from client)
The better way woudl be to store the sanitized variables in the session.
Collect all the information you need from all the forms you need.
Then after you have all the data needed, then finally update the DB (or Somethign else)
if I understood you well when you open the form you tell it wich acction will it perform
.when you click submit it will take you to the other form.in the other form you can access the values of the input fields from the previous form with $_POST['name_of_the_input_field'].i hope this will help you :D

ajax woes. Submitting without refreshing. I need help

I'm having problems submitting my ajax form. I am used to the old fashioned way with refresh but this new stuff is beyond me for the time being. It's time to start learning new technolohies.
I have an autosuggest box that is getting my results from a database and populating the textbox just fine. When I designed this about 6 months ago, I was searching the database on the value rather than the key value. This is a problem today and needs to be fixed.
WHat the ajax has returned to my script is the key/value pair. Now that I have the id, I need to pass that into my php method so I can process it from there.
Can somone please give me a hand with this? It seems simple enough but again, javascript was never my thing so I am lost.
Here is all of the relevant code. Also, I don't think, at least from the code samples I have seen so far that I even need a form tag. Am I correct on this? Ideally, I want to submit the found ajax value with the enter button and NOT using a button.
So, just to clarify, this is what happens. The user types 2 or 3 letters. The ajax queries the db on a "LIKE" operator and returns the matches. The user chooses the one he wants and then the id goes out to my method and returns the exact record in a different window.
<form method="post" class="hdrForm" id="search" action="../../index.php?cer=2" target="_top">
<input type="text" name="string" class="hdrInput" id="string" value="Quick Search"><div id="acDiv"></div>
</form>
Note.. I need the "id" in this function to be submitted. Right now, I am getting the POST val off the form tag and that's not correct but how?
AC.chooseFunc = function(id,label)
{
document.forms.search.submit();
}
Thanks for any help that you guys can give me on this.
Take a look at jQuery. It is a javascript library. It contains functionality for doing Ajax.
jQuery Ajax documentation.
document.getElementById("search").onsubmit = function() {
// Do what you want with the form
return false; // Stops submit continuing
}
This also degrades gracefully (if your server side program is written right) in that users without javascript get the form submitted normally to the page in the action attribute, without the AJAX.
I'd suggest you use a framework such as jQuery. A basic tutorial (including AJAX) is available
You have two problems. One is that you are telling the form to submit:
document.forms.search.submit();
That is what is causing your form to submit in the standard, non-xhr way - causing a refresh. Also, because your form does not contain an input element for the id, that is not being sent to the server even with a regular form submission.
I agree with the posters that it would be a good idea to use jQuery or something to do your ajax based submission. Something like this could be used inside of your "AC.chooseFunc" function instead of the form submit.
And yes, if you go ajax entirely, you don't even need a form tag.

Categories