Hello I have my code that scrapes the whole html of a page. But I need to scrape ONLY specific DIV class

Can someone help me

I would like to scrape this class HTML span3 height-325

this is my code

<?php

header("Content-Type: text/plain"); // We choose to display the content as plain text

$ch = curl_init("www.trade-ideas.com/ticky/ticky.html?symbol=amzn");
curl_setopt($ch, CURLOPT_HEADER, 0);
$response = curl_exec($ch); // Running the request

if (curl_error($ch)) {
    echo curl_error($ch); // Displaying possible errors from the request
} else {
    echo $response; // Displaying the content of the response
}

curl_close($ch);
?>