PHP 8.4 正式發布！支援 HTML5 格式解析
PHP 8.4 正式發布，並帶來多項重大升級，其中包含舊的已棄用的函數移除，以及新增加的 HTM5 格式解析、Property hooks、Asymmetric Visibility 等功能。
Property hooks
class Locale
{
public string $languageCode;
public string $countryCode
{
set (string $countryCode) {
$this->countryCode = strtoupper($countryCode);
}
}
public string $combinedCode
{
get => \sprintf("%s_%s", $this->languageCode, $this->countryCode);
set (string $value) {
[$this->countryCode, $this->languageCode] = explode('_', $value, 2);
}
}
public function __construct(string $languageCode, string $countryCode)
{
$this->languageCode = $languageCode;
$this->countryCode = $countryCode;
}
}
$brazilianPortuguese = new Locale('pt', 'br');
var_dump($brazilianPortuguese->countryCode); // BR
var_dump($brazilianPortuguese->combinedCode); // pt_BR
Asymmetric Visibility
class PhpVersion
{
public private(set) string $version = '8.4';
public function increment(): void
{
[$major, $minor] = explode('.', $this->version);
$minor++;
$this->version = "{$major}.{$minor}";
}
}
New ext-dom features and HTML5 support
$dom = Dom\HTMLDocument::createFromString(
<<<HTML
<main>
<article>PHP 8.4 is a feature-rich release!</article>
<article class="featured">PHP 8.4 adds new DOM classes that are spec-compliant, keeping the old ones for compatibility.</article>
</main>
HTML,
LIBXML_NOERROR,
);
$node = $dom->querySelector('main > article:last-child');
var_dump($node->classList->contains("featured")); // bool(true)
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