class Locale
{
private string $languageCode;
private string $countryCode;
public function __construct(string $languageCode, string $countryCode)
{
$this->setLanguageCode($languageCode);
$this->setCountryCode($countryCode);
}
public function getLanguageCode(): string
{
return $this->languageCode;
}
public function setLanguageCode(string $languageCode): void
{
$this->languageCode = $languageCode;
}
public function getCountryCode(): string
{
return $this->countryCode;
}
public function setCountryCode(string $countryCode): void
{
$this->countryCode = strtoupper($countryCode);
}
public function setCombinedCode(string $combinedCode): void
{
[$languageCode, $countryCode] = explode('_', $combinedCode, 2);
$this->setLanguageCode($languageCode);
$this->setCountryCode($countryCode);
}
public function getCombinedCode(): string
{
return \sprintf("%s_%s", $this->languageCode, $this->countryCode);
}
}
$brazilianPortuguese = new Locale('pt', 'br');
var_dump($brazilianPortuguese->getCountryCode()); // BR
var_dump($brazilianPortuguese->getCombinedCode()); // pt_BRclass 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->languageCode, $this->countryCode] = 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_BRclass PhpVersion
{
private string $version = '8.3';
public function getVersion(): string
{
return $this->version;
}
public function increment(): void
{
[$major, $minor] = explode('.', $this->version);
$minor++;
$this->version = "{$major}.{$minor}";
}
}class PhpVersion
{
public private(set) string $version = '8.4';
public function increment(): void
{
[$major, $minor] = explode('.', $this->version);
$minor++;
$this->version = "{$major}.{$minor}";
}
}#[\Deprecated] Atributo RFC
Doc
class PhpVersion
{
/**
* @deprecated 8.3 use PhpVersion::getVersion() instead
*/
public function getPhpVersion(): string
{
return $this->getVersion();
}
public function getVersion(): string
{
return '8.3';
}
}
$phpVersion = new PhpVersion();
// No indication that the method is deprecated.
echo $phpVersion->getPhpVersion();class PhpVersion
{
#[\Deprecated(
message: "use PhpVersion::getVersion() instead",
since: "8.4",
)]
public function getPhpVersion(): string
{
return $this->getVersion();
}
public function getVersion(): string
{
return '8.4';
}
}
$phpVersion = new PhpVersion();
// Deprecated: Method PhpVersion::getPhpVersion() is deprecated since 8.4, use PhpVersion::getVersion() instead
echo $phpVersion->getPhpVersion();#[\Deprecated] torna o mecanismo de descontinuação existente no PHP disponível para funções, métodos e constantes de classe definidas pelo usuário. $dom = new DOMDocument();
$dom->loadHTML(
<<<'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,
);
$xpath = new DOMXPath($dom);
$node = $xpath->query(".//main/article[not(following-sibling::*)]")[0];
$classes = explode(" ", $node->className); // Simplified
var_dump(in_array("featured", $classes)); // bool(true)$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)Dom\HTMLDocument, Dom\XMLDocument e métodos DOMNode::compareDocumentPosition(), DOMXPath::registerPhpFunctionNS(), DOMXPath::quote(), XSLTProcessor::registerPHPFunctionNS() estão disponíveis. $num1 = '0.12345';
$num2 = '2';
$result = bcadd($num1, $num2, 5);
echo $result; // '2.12345'
var_dump(bccomp($num1, $num2) > 0); // falseuse BcMath\Number;
$num1 = new Number('0.12345');
$num2 = new Number('2');
$result = $num1 + $num2;
echo $result; // '2.12345'
var_dump($num1 > $num2); // falseO novo objeto BcMath\Number permite o uso orientado a objetos e operadores matemáticos padrão ao trabalhar com números de precisão arbitrária.
Esses objetos são imutáveis e implementam a interface Stringable, então podem ser usados em contextos de string como echo $num.
array_*() RFC
$animal = null;
foreach (['dog', 'cat', 'cow', 'duck', 'goose'] as $value) {
if (str_starts_with($value, 'c')) {
$animal = $value;
break;
}
}
var_dump($animal); // string(3) "cat"$animal = array_find(
['dog', 'cat', 'cow', 'duck', 'goose'],
static fn(string $value): bool => str_starts_with($value, 'c'),
);
var_dump($animal); // string(3) "cat"$connection = new PDO(
'sqlite:foo.db',
$username,
$password,
); // object(PDO)
$connection->sqliteCreateFunction(
'prepend_php',
static fn($string) => "PHP {$string}",
);
$connection->query('SELECT prepend_php(version) FROM php');$connection = PDO::connect(
'sqlite:foo.db',
$username,
$password,
); // object(Pdo\Sqlite)
$connection->createFunction(
'prepend_php',
static fn($string) => "PHP {$string}",
); // Does not exist on a mismatching driver.
$connection->query('SELECT prepend_php(version) FROM php');Pdo\Dblib, Pdo\Firebird, Pdo\MySql, Pdo\Odbc, Pdo\Pgsql, Pdo\Sqlite de PDO estão disponíveis. new MyClass()->method() sem parênteses RFC
Doc
class PhpVersion
{
public function getVersion(): string
{
return 'PHP 8.3';
}
}
var_dump((new PhpVersion())->getVersion());class PhpVersion
{
public function getVersion(): string
{
return 'PHP 8.4';
}
}
var_dump(new PhpVersion()->getVersion());new entre parênteses. request_parse_body().bcceil(), bcdivmod(), bcfloor() e bcround().RoundingMode para round() com 4 novos modos de arredondamento: TowardsZero, AwayFromZero, NegativeInfinity e PositiveInfinity.DateTime::createFromTimestamp(), DateTime::getMicrosecond(), DateTime::setMicrosecond(), DateTimeImmutable::createFromTimestamp(), DateTimeImmutable::getMicrosecond() e DateTimeImmutable::setMicrosecond().mb_trim(), mb_ltrim(), mb_rtrim(), mb_ucfirst() e mb_lcfirst().pcntl_getcpu(), pcntl_getcpuaffinity(), pcntl_getqos_class(), pcntl_setns() e pcntl_waitid().ReflectionClassConstant::isDeprecated(), ReflectionGenerator::isClosed() e ReflectionProperty::isDynamic().http_get_last_response_headers(), http_clear_last_response_headers() e fpow().XMLReader::fromStream(), XMLReader::fromUri(), XMLReader::fromString(), XMLWriter::toStream(), XMLWriter::toUri() e XMLWriter::toMemory().grapheme_str_split()._ no nome da classe agora está obsoleto.round() agora lança um ValueError.date, intl, pdo, reflection, spl, sqlite, xmlreader agora são tipadas.GMP agora é final.MYSQLI_SET_CHARSET_DIR, MYSQLI_STMT_ATTR_PREFETCH_ROWS, MYSQLI_CURSOR_TYPE_FOR_UPDATE, MYSQLI_CURSOR_TYPE_SCROLLABLE e MYSQLI_TYPE_INTERVAL foram removidas.mysqli_ping(), mysqli_kill(), mysqli_refresh(), os métodos mysqli::ping(), mysqli::kill(), mysqli::refresh() e as constantes MYSQLI_REFRESH_* estão obsoletas.stream_bucket_make_writeable() e stream_bucket_new() agora retornam uma instância de StreamBucket em vez de stdClass.exit().E_STRICT está obsoleta.