For making simple "POST" in ajax and get the response ,i am describing here a good example as tested:
Step-1:
Make a html form for the same which you have to sent with using ajax for server:
<form id="foo">
<label for="bar">A bar</label>
<input id="bar" name="bar" type="text" value="" />
<input type="submit" value="Send" />
</form>
Step-2:
Here i am using a function which is related to your requirement:
<script type="text/javascript">
// Variable to hold request
var request;
// Bind to the submit event of our form
$("#foo").submit(function(event){
// Abort any pending request
if (request) {
request.abort();
}
// setup some local variables
var $form = $(this);
// Let's select and cache all the fields
var $inputs = $form.find("input, select, button, textarea");
// Serialize the data in the form
var serializedData = $form.serialize();
// Let's disable the inputs for the duration of the Ajax request.
// Note: we disable elements AFTER the form data has been serialized.
// Disabled form elements will not be serialized.
$inputs.prop("disabled", true);
// Fire off the request to /form.php
request = $.ajax({
url: "/form.php",
type: "post",
data: serializedData
});
// Callback handler that will be called on success
request.done(function (response, textStatus, jqXHR){
// Log a message to the console
console.log("Hooray, it worked!");
});
// Callback handler that will be called on failure
request.fail(function (jqXHR, textStatus, errorThrown){
// Log the error to the console
console.error(
"The following error occurred: "+
textStatus, errorThrown
);
});
// Callback handler that will be called regardless
// if the request failed or succeeded
request.always(function () {
// Reenable the inputs
$inputs.prop("disabled", false);
});
// Prevent default posting of form
event.preventDefault();
});
</script>
Now You can access the values posted by jQuery.ajax through the global variable $_POST, like this:
$bar = $_POST['bar'];
You could also use the shorthand .post in place of .ajax in the above JavaScript code:
<script type="text/javascript">
$.post('/form.php', serializedData, function(response) {
// Log the response to the console
console.log("Response: "+response);
});
</script>