<?php
	$title 	= get_the_title();
	$keys= explode(" ",$s);
	$title 	= preg_replace('/('.implode('|', $keys) .')/iu',
		'<strong class="search-excerpt">\0</strong>',
		$title);
?>

Open your search.php file and find the the_title() function. Replace it with the following:

1.echo $title;

Save the search.php file and open style.css. Append the following line to it:
strong.search-excerpt { background: yellow; }

Enlight search results in your WordPress blog

search, wordpress

PHP