PHP7: Array to string conversion in /mimetypes-link-icons/css/style.php

PHP Notice: Array to string conversion in wp-content/plugins/mimetypes-link-icons/css/style.php on line 7.

foreach ( $getvars as $v ) {
$data = explode( ‘=’, $v );
$$data[0] = $data[1];
}

I solved this with

foreach ( $getvars as $v ) {
$data = explode( ‘=’, $v );
${$data[0]} = $data[1];
}

Running WP 4.6.1 and PHP 7