Highlight specific text inside a code

[ameya730]

Hi,
I am using react-codemirror to show case php code in my application.
Is it possible to highlight specific text in the code ?

Example:
In the below code, is it possible to highlight echo with a yellow background

<?php
$colors = array("red", "green", "blue", "yellow");

foreach ($colors as $value) {
    echo "value";
}

[jaywcjlove]

@ameya730 https://codemirror.net/examples/lang-package/