Select value from JSON using PHP : <p>How to select data from bellow JSON code?</p>

<pre><code>"response": {
"status": 1,
"httpStatus": 200,
"data": [
{
"offer_id": "8000",
"countries": {
"SG": {
"id": "702",
"code": "SG",
"name": "Singapore",
"regions": []
}
}
</code></pre>

<p>How could I select the words SG and SINGAPORE </p>
