How can the function highlight_string be utilized for highlighting specific text sections?

To highlight specific text sections using the `highlight_string` function in PHP, you can pass the text you want to highlight as the first parameter and set the second parameter to true to enable syntax highlighting. This function will return the highlighted text as a string, which you can then output to the browser.

$text = "This is the text to be highlighted";
$highlightedText = highlight_string($text, true);
echo $highlightedText;