Returning Json Data To PHP Variables

I know there are a lot of similar question as this one on here but the problem I keep running into is that the method in which those other json file arrays are setup is not the same as mine.

What I am trying to do should just be a simple process but as I am not as versed in json arrays and I am other things, the solution is eluding me completely.

I just want to take the data display in a local json file and create PHP variables for each item returned.

The json file is simple and looks something like this...

[

    {

        "titleOne": "Foo",

        "textOne": "Bar",

        "titleTwo": "Foo",

        "textTwo": "Bar"

    }

]

It will always consist of just these 4 items. Then I use the following PHP to read and decode the file...

$data = file_get_contents ('./data.json');

$json = json_decode($data, true);

foreach ($json as $key => $value) {

    foreach ($value as $key => $val) {

            echo $key . '====>' . $val . '<br/>';

    }

}

but this simply outputs the data. I am trying to get each one of these 4 items to become variables. Example...

$titleOne

$textOne

$titleTwo

$textTwo

...so that the variables can be used in a form.

I have found many similar questions as this but the json data is always setup differently resulting in errors as results.