which regular expression should i use?

If this is my str开发者_如何学运维ing : "blablabla (blablabla)". Which regular expression should i use to split the string in such a way that i get returned:

1. "blablabla"
2. "(blablabla)"

Btw, I want to use the function mb_split.

EDIT The string can alsob be "blablabla blablabla blablabla (blablabla). explode() wouldn't work because of this.

EDIT, this is what i use now:

for example, $name = "blabla blabla blabla blabla (blabla)";

$name = explode(' ', $name);
$last = array_pop($name);
$sentence = null; 
foreach ($name as $names) {
$sentence .= $names.' ';
}
$sentence = mb_substr($title, 0, -1, 'UTF-8');

Actually, you do not need regex to do such easy task as splitting two words by space. Use explode() instead

$string = "blablabla (blablaba)";
explode(" ", $string);

No regular expression at all, just use explode:

$mystring = "blablabla (blablaba)";
$mywords = explode(" ", $mystring);

All you're doing is looking for a space!

If you're matching on a space that is followed by a '(', the pattern on which to split can be:

\s(?=\()

explode(" ", $string);

you dont required to write Regular Expression.

for EXPLODE

first argument will be neddle by which you want to export string into array..and second argument must be string ..

I would use explode, because no regex is needed here. If you still want mb_split, you can split at anything that is assumed a whitespace (newline, linebreak, space, tab etc): mb_split("\s", "hello world").

Look at docs. (I actually pasted the example here :))