PHP 8.3 – Performance-Verbesserungen, neue Funktionen und Inkompatibilitäten
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<code>use PHPUnit\Framework\TestCase;
final class MyTest extends TestCase {
protected $logFile;
protected function setUp(): void {
$this->logFile = fopen('/tmp/logfile', 'w');
}
protected function taerDown(): void {
fclose($this->logFile);
unlink('/tmp/logfile');
}
}
// The log file will never be removed, because the
// method name was mistyped (taerDown vs tearDown).
</code><code>use PHPUnit\Framework\TestCase;
final class MyTest extends TestCase {
protected $logFile;
protected function setUp(): void {
$this->logFile = fopen('/tmp/logfile', 'w');
}
#[\Override]
protected function taerDown(): void {
fclose($this->logFile);
unlink('/tmp/logfile');
}
}
// Fatal error: MyTest::taerDown() has #[\Override] attribute,
// but no matching parent method exists
</code><code>function json_validate(string $string): bool {
json_decode($string);
return json_last_error() === JSON_ERROR_NONE;
}
var_dump(json_validate('{ "test": { "foo": "bar" } }')); // true
</code><code>var_dump(json_validate('{ "test": { "foo": "bar" } }')); // true
</code><code>// This function needs to be manually implemented.
function getBytesFromString(string $string, int $length) {
$stringLength = strlen($string);
$result = '';
for ($i = 0; $i < $length; $i++) {
// random_int is not seedable for testing, but secure.
$result .= $string[random_int(0, $stringLength - 1)];
}
return $result;
}
$randomDomain = sprintf(
"%s.example.com",
getBytesFromString(
'abcdefghijklmnopqrstuvwxyz0123456789',
16,
),
);
echo $randomDomain;
</code><code>// A \Random\Engine may be passed for seeding,
// the default is the secure engine.
$randomizer = new \Random\Randomizer();
$randomDomain = sprintf(
"%s.example.com",
$randomizer->getBytesFromString(
'abcdefghijklmnopqrstuvwxyz0123456789',
16,
),
);
echo $randomDomain;
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