Php 如何把两个字爆出来一样？

如何应用爆炸来爆炸

co.uk====>co-uk

.co.uk===>co-uk

第一个代码没问题，它将爆炸co.uk===>co-uk

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

但是对于use.co.uk，它不好吗

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

---

如何申请？

您最好先去掉任何点字符：

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

---

你可以用foreach试试这个

<?php
$data = ".co.uk";
$data = explode(".", $data);
foreach($data as $value)
{
echo $value.'<br>';
}
?>

使用此代码

<?php
$data = ".co.uk";
$list = array_filter(explode(".", $data));
$tld = $list[1];
$tld_sub = $list[2];
echo $tld;
echo "<br>";
echo $tld_sub;
?>