How to retrieve information from $.post - php

Question

I am currently running JavaScript after a click of a button in my PHP page which saves data.
a.js:
function save(){
var oldItems = JSON.parse(localStorage.getItem('itemsArray')) || [];
var newItem = {};
var num = document.getElementById("num").value;
newItem[num] = {
"methv": document.getElementById("methv").value
,'q1': document.getElementById("q1").value,
'q2':document.getElementById("q2").value,
'q3':document.getElementById("q3").value,
'q4':document.getElementById("q4").value,
'comm':document.getElementById("comm").value
};
oldItems.push(newItem);
localStorage.setItem('itemsArray', JSON.stringify(oldItems));
$.post('edit.php', { items: JSON.stringify(oldItems) }, function(response) {
});
In the PHP page, my form looks like this:
edit.php
<form action="" method="post" enctype="multipart/form-data">
<select name="methv" class="textfields" id="methv" style="width:110px" >
<option value= "dont know">dont know </option>
<select name="q1" class="textfields" id="q1" style="width:50px" >
<option value= "-">-</option>
<option value= "L">L</option>
<select name="q2" class="textfields" id="q2" style="width:50px" >
<option value= "-">-</option>
<option value= "L">L</option>
<select name="q3" class="textfields" id="q3" style="width:50px" >
<option value= "-">-</option>
<option value= "L">L</option>
<select name="q4" class="textfields" id="q4" style="width:50px" >
<option value= "-">-</option>
<option value= "L">L</option>
<textarea rows="4" cols="40" id="comm" name="comm" style="width:300px"><?php echo $post['addcomment'] ;?></textarea>
</form>
When I run the PHP page and click the button, in the console, I get a post:
[{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}}]
These are the results from the local storage- one from before and one after it- being clicked (adds every time the button is clicked). How do I get this information and display it on the PHP page?

Answer 1

Do you already have an edit.php file to handle the POST request? This link might help you if not. http://edwin.baculsoft.com/2011/12/how-to-handle-json-post-request-using-php/
Once edit.php is set up to handle the request and return data, you'll probably want to manipulate that data within your response function.
$.post('edit.php', { items: JSON.stringify(oldItems) }, function(data) {
// Do something here, for example...
alert(data);
});
Hopefully this is what you're looking for.