在preg_split之后附加多个值

Question

Im running a loop to insert a column from csv file .The csv file contains a column with values like

India
srilanka
china taiwan
USA UK France
china japan

I split the column using preg_split function ,to split based on empty spaces

preg_split('/\s+/', $countries);

After splitting i get the output like this

Array
(
    [0] => India
)
Array
(
    [0] => srilanka
)
Array
(
    [0] => USA
    [1] => UK
    [2] => France
)

Array
(
    [0] => china
    [1] => japan

)

each array if it contains more than one value it should append 2nd and third with opening and closing braces

I want to have final value as

india
srilanka
USA(UK France)
China(japan)

Answer 1

I think this does what you want. This gets each line as argument, not the array. So you don't have to do the preg_split:

function split_countries($line) {
    $split = explode(" ", $line);
    $ret = array_shift($split);
    if (count($split)) {
        $ret .= "(" . implode(" ", $split) . ")";
    }
    return $ret;
}

echo split_countries("India") . "
";
echo split_countries("USA UK France") . "
";