```php

function getWebpageTitle($url){

$content = file_get_contents($url);

preg_match("/\(.*?)\<\/title\>/si", $content, $matches);

return isset($matches[]) ? trim($matches[]) : "";

}

$url = "http://www.example.com";

echo getWebpageTitle($url);

?>

```

以上代碼通過(guò)`file_get_contents()`函數(shù)獲取指定URL的頁(yè)面內(nèi)容，使用`preg_match()`函數(shù)匹配頁(yè)面中的