如何将2个字分解为相同的输出？

Question

How to apply explode to explode

co.uk ======> co uk

.co.uk ======> co uk

first code it's ok , it's will explode co.uk =====> co uk

<?php
$data = "co.uk";
list($tld, $tld_sub) = explode(".", $data);
echo $tld;
echo "<br>";
echo $tld_sub;
?>

But for use .co.uk ,it's not ok ?

<?php
$data = ".co.uk";
list($tld, $tld_sub) = explode(".", $data);
echo $tld;
echo "<br>";
echo $tld_sub;
?>

How can i apply ?

Answer 1

You'll probably be better off stripping any dot characters first:

list($tld, $tld_sub) = explode('.', trim($data, '.'));