Saving Javascript Array to PHP

Question

Hello i am quite new to javascipt so please explain things clearly. I am currently running a php page which includes:

upp.php

<script>
document.getElementById("data").value = localStorage.getItem('itemsArray');
</script>

this items array contains objects which is saved like this:

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('upp.php',{ items: JSON.stringify(oldItems) }, function(response) {
    window.location.href = "upp.php";

the result of the page appears like this:

[{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}},{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}}]

is there anyway i can save this information into PHP and split the data so I can manipulate it one at a time like a loop or something. For example:

1st time:

{"1173627548":{"methv":"dont know","q1":"-","q2":"-","q3":"U","q4":"-","comm":""}}

etc.

Thanks.

in upp.php you can use the json_decode function to turn it back into objects — Robot Woods
– Robot Woods, Commented Mar 15, 2013 at 15:27

David · Accepted Answer · 2013-03-15 15:28:14Z

1

upp.php:

<?php 
$array = json_decode($_POST['items'], True);
foreach ($array as $key=>$line) {
    # $key is a number like 1173627548
    # and $Line is an array with methv, q1, q2, q3, q4, and comm
}
?>

That will show you the array it got from the JSON. Now you can work with the data.

answered Mar 15, 2013 at 15:28

David

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2 Comments

user2162650 Over a year ago

Hey David i am getting a Undefined Index in my php page for the items. Any ideas? or do i have to import something like jQuery?

David Over a year ago

Test your jQuery AJAX call.

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