Cut a string recursively

I have a string, and I must print it in a div.

The width of the div is limited, so if many characters are close the string will exit from the div.

Just think to a width:30px div and a string such as hellomynameismarcoandilikemadewebapplicationinmyfreetimes.

So I need a sort of function on php that cut recursively the string; I mean, cut the string and add somethings like <br/>.

Another problem here is that my string is printed through htmlentities($string, ENT_QUOTES, "UTF-8"); , so the <br/> will fail.

How can I do it on PHP?

EDIT My Final Solution

function printMyStrings($str, $width) {
    return ereg_replace("&lt;br/&gt;","<br/>", htm开发者_C百科lentities(wordwrap($str, $width, "<br/>", true), ENT_QUOTES, "UTF-8"));
}

chunk_split ( $string , 80 ,"<br>");

The following will hard-wrap it at $width. Docs on wordwrap()

$width = 30;
$wrapped_string = wordwrap("Hellomynameismarcoandilikemadewebapplicationinmyfreetimes.", $width, "\n", TRUE);

// nl2br to add HTML linebreaks
echo nl2br($wrapped_string);

Just add a space and the browser will take care of breaking it for you