Tidying search results from database php
<?php

foreach ($searchcontent ->result() as $row)
{
echo $title
echo $content
}
?>

$keyword = THESEARCHEDKEYWORD;
$pattern = "/([^a-z])$keyword([^a-z])/i";
$highlight = '<span class="highlight">' . $keyword . '</span>';
foreach ($searchcontent->result() as $row)
{
   $title = preg_replace($pattern, "$1$highlight$2", $title);
   $content = preg_replace($pattern, "$1$highlight$2", $content);
   echo $title;
   echo $content;
}

.highlight
{
   font-weight: bold;
   background-color: yellow;
}