Function for highlighting text/strings in PHP.
$content = file_get_contents("http://php.net/");
print highlight("PHP", $content);
function highlight($match, $string){
return str_ireplace($match, "<span style='background:yellow'>$match</span>", $string);
}
Will output something like this

Highlighted PHP.Net
***Notice all the styles are gone
… would need to parse the document body to maintain stylesheet and other ‘php’ strings that might be in resources paths.
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