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_BR
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->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_BR
class 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]
RFC
Documentación
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]
hace que el mecanismo de obsolescencia existente de PHP esté disponible para funciones, métodos y constantes de clase definidas por el usuario. $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)
Nueva API DOM que incluye soporte conforme a los estándares para el análisis de documentos HTML5, corrige varios errores de cumplimiento antiguos en el comportamiento de la funcionalidad DOM, y añade varias funciones para hacer más conveniente trabajar con documentos.
La nueva API DOM está disponible dentro del espacio de nombres Dom
. Los documentos que utilizan la nueva API DOM pueden ser creados utilizando las clases Dom\HTMLDocument
y Dom\XMLDocument
.
$num1 = '0.12345';
$num2 = 2;
$result = bcadd($num1, $num2, 5);
echo $result; // '2.12345'
var_dump(bccomp($num1, $num2) > 0); // false
use BcMath\Number;
$num1 = new Number('0.12345');
$num2 = new Number('2');
$result = $num1 + $num2;
echo $result; // '2.12345'
var_dump($num1 > $num2); // false
El nuevo objeto BcMath\Number
permite el uso orientado a objetos y operadores matemáticos estándar cuando se trabaja con números de precisión arbitraria.
Estos objetos son inmutables e implementan la interfaz Stringable
, por lo que se pueden usar en contextos de cadena 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
y Pdo\Sqlite
de PDO
ahora están disponibles. new MyClass()->method()
sin paréntesis RFC
Documentación
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 paréntesis. request_parse_body()
.bcceil()
, bcdivmod()
, bcfloor()
y bcround()
.RoundingMode
para round()
con 4 nuevos modos de redondeo: TowardsZero
, AwayFromZero
, NegativeInfinity
y PositiveInfinity
.DateTime::createFromTimestamp()
, DateTime::getMicrosecond()
, DateTime::setMicrosecond()
, DateTimeImmutable::createFromTimestamp()
, DateTimeImmutable::getMicrosecond()
, y DateTimeImmutable::setMicrosecond()
.mb_trim()
, mb_ltrim()
, mb_rtrim()
, mb_ucfirst()
, y mb_lcfirst()
.pcntl_getcpu()
, pcntl_getcpuaffinity()
, pcntl_getqos_class()
, pcntl_setns()
y pcntl_waitid()
.ReflectionClassConstant::isDeprecated()
, ReflectionGenerator::isClosed()
, y ReflectionProperty::isDynamic()
.http_get_last_response_headers()
, http_clear_last_response_headers()
y fpow()
.XMLReader::fromStream()
, XMLReader::fromUri()
, XMLReader::fromString()
, XMLWriter::toStream()
, XMLWriter::toUri()
y XMLWriter::toMemory()
.grapheme_str_split()
._
como nombre de clase ahora está en desuso.round()
lanza un ValueError
.date
, intl
, pdo
, reflection
, spl
, sqlite
, xmlreader
ahora tienen tipos.GMP
ahora es final.MYSQLI_SET_CHARSET_DIR
, MYSQLI_STMT_ATTR_PREFETCH_ROWS
, MYSQLI_CURSOR_TYPE_FOR_UPDATE
, MYSQLI_CURSOR_TYPE_SCROLLABLE
, y MYSQLI_TYPE_INTERVAL
han sido eliminadas.mysqli_ping()
, mysqli_kill()
, mysqli_refresh()
, los métodos mysqli::ping()
, mysqli::kill()
, mysqli::refresh()
, y los constantes MYSQLI_REFRESH_*
están en desuso.stream_bucket_make_writeable()
y stream_bucket_new()
ahora devuelven una instancia de StreamBucket
en lugar de stdClass
.exit()
.E_STRICT
está en desuso.