i want to add string data to before first character and after last character

Shortly i have string variable similar to this:(ever开发者_如何学运维y li elements is array element.)

<li>first</li>
<li>second</li>
.
.
.

I want get:

<ul>
<li>first</li>
<li>second</li>
    .
    .
    .
</ul>

But require add string data's start and end for this avaible..

$var = "<ul>\n".$oldvar."\n</ul>";

will probably does it

Not really?

$my_string = "foo";
$new_string = "<start>" . $my_string . "<end>";

// $new_string is now "<start>foo<end>"

// or, another option:
$new_string = "<start>$my_string<end>";

This one's easy.

$str = "<li>.....</li>\n"
$strWithUL = "<ul>\n$str</ul>";

Hidden in plain sight :)