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]
attribuut RFC
Documentatie
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]
attribuut maakt PHP’s bestaand uitfaseringsmechanisme beschikbaar voor gebruiker gedefinieerde functies, methoden en klasseconstanten. $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)
Nieuwe DOM API met correcte ondersteuning voor de HTML 5 standaard, oplossingen voor verschillende lang bestaande compliance bugs in the DOM functionaliteit, en verschillende nieuwe functies om het werken met documenten eenvoudiger te maken.
De nieuwe DOM API is beschikbaar via de Dom
namespace. Documenten die de nieuwe API willen gebruiken, kunnen aangemaakt worden via de Dom\HTMLDocument
en Dom\XMLDocument
klassen.
$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
De nieuwe BcMath\Number
klasse laat toe om op object-georiënteerde wijze, met standaard wiskundige operaties, te werken met arbitraire precisie getallen.
Deze objecten zijn niet muteerbaar en implementeren de Stringable
interface, waardoor ze gebruikt kunnen worden in string contexten zoals echo $num
.
array_*()
functies 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
van PDO
zijn nu beschikbaar. new MyClass()->method()
zonder haakjes RFC
Documentatie
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
expressie tussen haakjes te zetten. request_parse_body()
functie.bcceil()
, bcdivmod()
, bcfloor()
, en bcround()
functies.RoundingMode
enum voor round()
met 4 nieuwe afrondingsmodi TowardsZero
, AwayFromZero
, NegativeInfinity
, en PositiveInfinity
.DateTime::createFromTimestamp()
, DateTime::getMicrosecond()
, DateTime::setMicrosecond()
, DateTimeImmutable::createFromTimestamp()
, DateTimeImmutable::getMicrosecond()
, en DateTimeImmutable::setMicrosecond()
methoden.mb_trim()
, mb_ltrim()
, mb_rtrim()
, mb_ucfirst()
, en mb_lcfirst()
functies.pcntl_getcpu()
, pcntl_getcpuaffinity()
, pcntl_getqos_class()
, pcntl_setns()
, en pcntl_waitid()
functies.ReflectionClassConstant::isDeprecated()
, ReflectionGenerator::isClosed()
, en ReflectionProperty::isDynamic()
methoden.http_get_last_response_headers()
, http_clear_last_response_headers()
, en fpow()
functies.XMLReader::fromStream()
, XMLReader::fromUri()
, XMLReader::fromString()
, XMLWriter::toStream()
, XMLWriter::toUri()
, en XMLWriter::toMemory()
methoden.grapheme_str_split()
functie._
als een klassenaam is nu uitgefaseerd.round()
resulteert in een ValueError
.date
, intl
, pdo
, reflection
, spl
, sqlite
, xmlreader
hebben nu types.GMP
klasse is nu final.MYSQLI_SET_CHARSET_DIR
, MYSQLI_STMT_ATTR_PREFETCH_ROWS
, MYSQLI_CURSOR_TYPE_FOR_UPDATE
, MYSQLI_CURSOR_TYPE_SCROLLABLE
, en MYSQLI_TYPE_INTERVAL
constanten zijn verwijderd.mysqli_ping()
, mysqli_kill()
, mysqli_refresh()
functies, mysqli::ping()
, mysqli::kill()
, mysqli::refresh()
methoden, en MYSQLI_REFRESH_*
constanten zijn uitgefaseerd.stream_bucket_make_writeable()
en stream_bucket_new()
geven nu een instantie van StreamBucket
terug in plaats van stdClass
.exit()
heeft ander gedrag.E_STRICT
constante is uitgefaseerd.