Develop Reference

How to get php page to receive ajax post from html page

I have a very simple form that has an input field for first name. I captured the form data and transmitted it via ajax to a PHP page using the standard jQuery posting method. However, I am not able at all get any responses from the PHP page that any data was captured on the server-side. I am not sure what I have done wrong or what is missing.
Here is my code.
Form:
<form action="process.php" method="POST">
<div class="form-group">
<div class="form-row">
<div class="col-md-6 mb-3">
<label for="firstName">First name</label>
<input type="text" class="form-control" name="firstName" id="firstName" placeholder="First name">
<div class="d-none" id="firstName_feedback">
<p>Please enter a first name.</p>
</div>
</div>
</div>
</div>
<button class="btn btn-primary" type="submit">Submit form</button>
</form>
Here is my Jquery Ajax call:
<script>
$(document).ready(function() {
$('form').submit(function(event) {
var formData = $("form").serialize();
console.log(formData);
$.ajax({
type: 'POST',
url: 'form.php',
data: formData,
dataType: 'json',
encode: true
})
.done(function(data) {
console.log(data);
});
event.preventDefault();
});
});
</script>
And here is my PHP page:
if(isset($_POST['formData']))
$ajaxData = ($_POST['formData']);
echo $ajaxData;
{
}

In your Ajax function, you're passing the contents of formData to the server, though not as formData but as their original input name.
In this case, you have:
<input type="text" class="form-control" name="firstName" id="firstName" placeholder="First name">
The input's name is firstName, so you need to call $_POST['firstName'] instead of $_POST['formData'].
if (isset($_POST['firstName'])) {
$ajaxData = $_POST['firstName'];
echo $ajaxData;
}
The same applies for any other field you would have in your form, so for example, having another input with the name lastName means you'd have to call $_POST['lastName'] to access it.
There were also some misplaced brackets and parentheses in the PHP code which I accommodated above.

How to urlencode angularjs ng-model realtime

Recently I've started a new project and would like to do some angularjs magic. The problem is i'm not skilled enough in angularjs or javascript to know how I could do it. One requirement is that it has to be in realtime without reloading a page.
So let me start with my questions now. I've got a simple input field and a display section that instantly shows everything that I type in. However I want the display part to be modified on the fly.
<div id="form" class="form-wrap" ng-app="" />
<form action="index.php" method="post" id="form" />
<input type="text" name="url" id="url" value="" ng-model="name" />
<input type="submit" name="form_submit" id="form_submit" value="GOTO" />
</form>
https://example.com/index.php?url={{name}}
</div>
I'm already doing a validation in javascript but I dont know if it needs to be done in javascript or somehow in de anguarjs code itself. Just to be sure my javascript validation code:
<script>
$('<div class="loading"><span class="bounce1"></span><span class="bounce2"></span><span class="bounce3"></span></div>').hide().appendTo('.form-wrap');
$('<div class="success"></div>').hide().appendTo('.form-wrap');
$('#form').validate({
rules: {
url: { required: true, url: true }
},
messages: {
url: {
required: 'Address is requ!red',
url: 'Address is not val!d (https://www.nu.nl)'
}
},
errorElement: 'span',
errorPlacement: function(error, element){
error.appendTo(element.parent());
},
});
</script>
As you might guess by now I want the {{name}} value to be urlencoded realtime so that an url like: https://www.google.nl/?q=a b c will be changed to https://www.google.nl/?q=a%20b%20c However, how should I do this?
Thanks in advance!

Hi you can call a function on ng-change to encode name into url format like below.
I have create a function urlFormat which take name value and convert it to url format and push new variable urlname back.
<div id="form" class="form-wrap" ng-app="" />
<form action="index.php" method="post" id="form" />
<input type="text" name="url" id="url" value="" ng-model="name" ng-change="urlFormat(name)" />
<input type="submit" name="form_submit" id="form_submit" value="GOTO" />
</form>
https://example.com/index.php?url={{urlname}}
</div>
And create that function inside your controller like
$scope.urlFormat = function (name) {
$scope.urlname = encodeURI(name)
}

Is there a way to send data from html tags to php?

I am trying to alter the functionality of submit button for some reasons. If have called a JS function which is called by clicking submit button but i have no idea how can i manually send my data from html tags to php variables. Below is the short description of code.
<html>
<body>
<input class="inputtext" id="email" name="email" type="text"></div>
<input value="Submit" name="v4l" id="login" class="inputsubmit" type="button" onclick="myFunction();return false">
<script>
function myFunction() {
var TestVar =document.getElementById("email").value;
document.write(TestVar);
//store data of testvar to php
}
</script>
<html>
<body>
I know it can be done by form but i need it this way.

Using a PHP form would be a really simple solution: http://www.w3schools.com/php/php_forms.asp
You could pretty much post it strait to the PHP page.

I hope you are comfortable with jQuery.
Try
$("#login").click(function(){
var email= $("#email").val();
jQuery.post(
"*your parsing url*",
{email:email},
function(data){
// Data returned from the ajax call
}
)
});

The jQuery library makes this, and many other tasks, very simple:
<html><head></head><body>
<form id="myForm">
<input class="inputtext" id="email" name="email" type="text"></div>
<input value="Submit" name="v4l" id="login" class="inputsubmit" type="button" onclick="myFunction();return false">
</form>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script>
function myFunction() {
jQuery.ajax({
url: 'yourcode.php',
type: 'POST',
data: jQuery('#myForm').serialize(),
success: function(response) {
alert('The data was sent, and the server said '+response);
}
});
}
</script>
</body></html>
See http://api.jquery.com/jquery.ajax/ for more information.

Submitting form data through ajax not working

sorry for the dumb question but I can't seem to get this going and I figured I best give you more info than not enough -
I have a form that I am running inside a loop in php like this:
<form name="primaryTagForm'.$post->ID.'" id="primaryTagForm'.$post->ID.'" method="POST" enctype="multipart/form-data" >
<fieldset class="tags">
<label for="post_tags'.$post->ID.'">Tags:</label>
<input type="text" value="" tabindex="35" name="postTags'.$post->ID.'" id="postTags'.$post->ID.'" />
</fieldset>
<fieldset>
<input type="hidden" name="submitted" id="submitted" value="true" />
'.wp_nonce_field( 'post_nonce', 'post_nonce_field' ).'
<button class="button" type="submit">Tag</button>
</fieldset>
</form>
I have tried adding my ajax under that form (Still within the loop so I can grab the post_id) and in my console it my tag-ajax.php file is posted just fine. Here is my weak attempt at that based on this: Save data through ajax jQuery post with form submit and other like questions.
<script>
jQuery(document).ready(function($) {
$(".button").click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: "'.get_stylesheet_directory_uri().'/tags-ajax.php",
data: "primaryTagForm'.$post->ID.'",
success: function(data){
//alert("---"+data);
alert("Tags have been updated successfully.");
}
});
});
});
</script>
And lastly here is what is in my tags-ajax.php file -
if(isset($_POST['submitted']) && isset($_POST['post_nonce_field']) && wp_verify_nonce($_POST['post_nonce_field'], 'post_nonce')) {
wp_set_object_terms( $post->ID, explode( ',', $_POST['postTags'.$post->ID] ), 'product_tag', true );
echo'Success!';
}
So when I try running this a couple of things happen by looking in the console, if I hit submit on one of the forms then all them forms on that page post to tags-ajax.php (Im sure it is because I am doing this in a loop but not sure how else to do it and bring in post->ID on tags-ajax.php)
The second, most important thing is that nothing actually saves, I click the "Tag" but (submit) and I get those success alerts (for each post unfortunately) but when I click through those the tags are not actually saved.
My question: How do I get the data to actually save with the ajax/php and how can I have that post refresh without reloading the page so the user sees they actually were added?
Latest Update: After making the serialize edits mentioned below I submit my form and check the console and see the post method is getting a 500 internal server error.. Im thinking if my problem is coming from because I have the form and an inline script with the ajax running in a loop? So there are technically 20 posts/forms/inline scripts on a page and when you submit one, all of them submit which may be causing the 500 internal error?

The data: option in ajax should be
data: $("#primaryTagForm'.$post->ID.'").serialize(),

Use serialize
You have to change
data: "primaryTagForm'.$post->ID.'",
to
data: $("#primaryTagForm'.$post->ID.'").serialize(),

Simplify your markup. You dont have to use id attributes everywhere. Just include a hidenn tag in your form with the value of $post->id. Also echo the ajax url at the form's acton attribute.
So the html should be similar to this:
<form method="POST" action="' . get_stylesheet_directory_uri() .'/tags-ajax.php" >
<input type='hidden" name="id" value="'.$post->ID.'">
<fieldset class="tags">
<label>Tags:</label>
<input type="text" value="" tabindex="35" name="tags" />
</fieldset>
<fieldset>
<input type="hidden" name="submitted" id="submitted" value="true" />
'.wp_nonce_field( 'post_nonce', 'post_nonce_field' ).'
<button class="button" type="submit">Tag</button>
</fieldset>
</form>
Then you can use a script like this:
jQuery(document).ready(function($) {
$(".button").click(function(e) {
e.preventDefault();
var $target = $(e.target),
$form = $target.closest('form');
$.ajax({
type: "POST",
url: $form.prop('action'),
data: $form.serialize(),
success: function(data){
//alert("---"+data);
alert("Tags have been updated successfully.");
}
});
});
});

Getting the value of the child of sibling jquery/ajax?

I'm currently trying to make a ajax comment function work once a user clicks "open comments".
Currently I'm getting data back from my php script and the status of the ajax call is "200 OK" so it definetely works but I'm just unable to get the correct value for the current comment which has been clicked on in order to post it to the php script.
What I'm asking is how do I get the value of the ".posted_comment_id" class and then how do I load the data which is returned into the ".commentView" class?
jQuery/AJAX:
$(".closedComment").click(function(){
var $this = $(this);
$this.hide().siblings('.openComment').show();
$this.siblings().next(".commentBox").slideToggle();
$.ajax({
type: "POST",
url: "http://example.dev/comments/get_timeline_comments",
data: {post_id: $this.siblings().next(".commentBox").find(".posted_comment_id").val()},
dataType: "text",
cache:false,
success:
function(data){
$this.closest(".commentView").load(data);
}
});
return false;
});
HTML:
<div class="interactContainer">
<div class="closedComment" style="display: none;">
open comments
</div>
<div class="openComment" style="display: block;">
close comments
</div>
<div class="commentBox floatLeft" style="display: block;">
<form action="http://example.com/comments/post_comment" method="post" accept-charset="utf-8">
<textarea name="comment" class="inputField"></textarea>
<input type="hidden" name="post" value="13">
<input type="hidden" name="from" value="5">
<input type="hidden" name="to" value="3">
<input type="submit" name="submit" class="submitButton">
</form>
<div class="commentView"></div>
<div class="posted_comment_id" style="display:none;">13</div>
</div>
</div>

Replace .val by .html or .text. This will return the innerHTML of the element.
data: {
post_id: $this.siblings().next(".commentBox").find(".posted_comment_id").text()
}
You might need to convert the string to an integer to make it work.
If the query selector fails, this selector might do the job instead:
$this.parent().find(".posted_comment_id")
To add the returned data on your webpage, use the success handler. Here's an example of how it's done:
success: function(json) {
// Parse your data here. I don't know what you get back, I assume JSON
var data = JSON.parse(json),
content = data.whatever_you_want_to_print;
// Assuming your selector works, you put in in the element using .html
$this.closest(".commentView").html(content);
}
});

You probably want to do something like:
$(this).parents('.interactContainer').find(".posted_comment_id").text()