Convert Posted Javascript Array into PHP Array

PHP
1

Hi

I need to be able to convert a javascript associative array into a PHP array but i am struggling to get it to work. The main basketItems array will contain item arrays (with a key of itemUnique) which contain the specific item specifications (color,engine etc…)

My javascript arrays are built as below inside a function that gets called on a button press:


// create main basketItems Array
var basketItems = new Array();

function createArray() {
    var item = new Array();
    item["number"] = number variable;
    item["color"] = color variable;
    item["engine"] = engine variable;
    item["shape"] = shape variable;
    item["seats"] = seats variable;
    item["price"] = price variable;

    var itemUnique = unique variable;

    // Add Item into BasketItems Array
    basketItems[itemUnique] = item;
}

I need to be able to pass the javascript arrays through the POST method so i can then use them on the server. Is this possible?

Many thanks in advance for any help

2

When you post an array from your JS code the PHP core should automatically understand it, if you use var_dump and exit the script the response should be a dump of the sent array with all it’s keys and values intact.

3

Hi Chris

Thanks for posting about this. I have posted my javascript array to PHP and i can now print the complete basketItems array.

As an example if i have in PHP:


<?php
$basketItems = $_POST['items'];
print $basketItems;
?>

This will output:


{ 546523 = { seats = \\"FOUR\\"; shape = \\"HATCHBACK\\"; price = \\"6500\\"; engine = \\"TWO LITRE\\"; color = \\"ORANGE\\"; number = \\"36408974\\"; }; }

I need to know how i can target specific item specs for all the basketItems array.

For example output just the shape values in basketItems rather than every single value

I have tried numerous:


foreach($basketItems as $key => $value) {
.......
}

but i always get an invalid argument on the foreach.

4

What you have posted above is a JSON array which firsts needs to be decoded using PHP’s json_decode() function.

5

I’ve just tried the following which again gives me foreach invalid argument:


<?php
$basketItems = $_POST['items'];
$array = json_decode($basketItems);

foreach($array as $unique => $item) {
	print $item['shape'];
}
?>

I then tried just printing the json_decoded basketItems and it gives me an empty output.


<?php
$basketItems = $_POST['items'];
$array = json_decode($basketItems);

	print $array;

?>

Should this work or am i doing something wrong?

6

This:
{ 546523 = { seats = \“FOUR\”; shape = \“HATCHBACK\”; …
Is not json.
json will look something like this: $json = ‘{“a”:1,“b”:2,“c”:3,“d”:4,“e”:5}’;
Note the : and not = for assignments.

How are you posting your information?

And BTW, by default json_decode returns an object and not n array. Consult the manual.