Convert string to PHP Array

Question

I have this string:

[[{"id":"1"},{"qty":"2"}],[{"id":"2"},{"qty":"1"}],[{"id":"4"},{"qty":"3"}],[{"id":"5"},{"qty":"1"}]]

How can I turn it into a multidimensional PHP Array and loop through each id?

Answer 1

This is a JSON encoded string, so just use json_decode

Answer 2

This is a JSON object. Just use json_decode().

Answer 3

You can use json_decode($json) in order to do this, using it allows you to obtain an array of objects or if you call json_decode with the second parameter set to false json_decode($json,TRUE) you'll obtain just an array.

Here is an example:

$str = '[{"id":"1","qty":"2"},{"id":"2","qty":"1"},{"id":"4","qty":"3"},{"id":"5","qty":"1"}]';
$data = json_decode($str);
foreach ($data as $block) {
    echo $block->id."::".$block->qty."<br>";
}

$data = json_decode($str,TRUE);

foreach ($data as $block) {
    echo $block['id']."::".$block['qty']."<br>";
}