class PHP

final class PHP {
    private readonly string $version;
    private readonly int $versionId;
    private readonly int $majorVersion;
    private readonly int $minorVersion;
    private readonly int $releaseVersion;
    private readonly string $extraVersion;
    private readonly string $sapi;
    
    /**
     * @psalm-var list<string>
     */
    private readonly array $extensions;
    public function __construct() {
        $this->version = PHP_VERSION;
        $this->versionId = PHP_VERSION_ID;
        $this->majorVersion = PHP_MAJOR_VERSION;
        $this->minorVersion = PHP_MINOR_VERSION;
        $this->releaseVersion = PHP_RELEASE_VERSION;
        $this->extraVersion = PHP_EXTRA_VERSION;
        $this->sapi = PHP_SAPI;
        $extensions = array_merge(get_loaded_extensions(true), get_loaded_extensions());
        sort($extensions);
        $this->extensions = $extensions;
    }
    public function version() : string {
        return $this->version;
    }
    public function sapi() : string {
        return $this->sapi;
    }
    public function majorVersion() : int {
        return $this->majorVersion;
    }
    public function minorVersion() : int {
        return $this->minorVersion;
    }
    public function releaseVersion() : int {
        return $this->releaseVersion;
    }
    public function extraVersion() : string {
        return $this->extraVersion;
    }
    public function versionId() : int {
        return $this->versionId;
    }
    
    /**
     * @psalm-return list<string>
     */
    public function extensions() : array {
        return $this->extensions;
    }

}