WP SQL for pulling meta_data as "Key" -> "Value" pairs

meta_data_query.php

// Example ID
$id = '1';

// DB connection and query
global $wpdb;
$rows = $wpdb->get_results(
    "
    SELECT $wpdb->postmeta.meta_key, $wpdb->postmeta.meta_value
    FROM $wpdb->postmeta
    WHERE
    $wpdb->postmeta.post_id = 1361
    GROUP BY
    $wpdb->postmeta.meta_key
    "
);

// Create array
$fields = [];

// Loop through to sort into pairs
foreach($rows as $r) {
    $k = $r->meta_key;
    $v = $r->meta_value;
    $fields[$k] = $v;
}

// Array is now one dimensional so can the values can be accessed by the key
var_dump($fields['meta_key_name']);

// Output 'meta_key_value'