get_debug_type - PHP code example

PHP Function Get_Debug_Type

PHP has a lot of new features and improvements in PHP 8. These changes can have a great impact on your day to day programming. But, if you’re not ready to update your code for these changes then you can use a simple function to get a similar effect. This function is called php function get_debug_type.

This is a very simple and easy to use function. This function will return the type name of a variable. It works similarly to the native gettype() function. But, this function will give you more detailed information for arrays, strings, anonymous classes, and objects.

Also, this function will resolve the class name of objects, scalar values to their native type names, and resource types to their type name, just like in PHP 7. This will help you debug better.

Another important feature that will make your life easier is named arguments. This is a new way to pass parameters into a function based on their order rather than the position. This will save a lot of time and confusion because you won’t need to copy all the default arguments that come before your own, but you can simply assign them by their name.

Finally, PHP has added support for union types. These are a collection of two or more types that indicate that either one can be used. This feature is not completely complete as it only supports void and integer types, but it’s a start. It will be great to see more support for these kinds of types in the future.

get_debug_type example

if (false === strpos($class, '@')) {
            return $class;
        }

        return (get_parent_class($class) ?: key(class_implements($class)) ?: 'class').'@anonymous';
    }

    public static function get_resource_id($res): int
    {
        if (!\is_resource($res) && null === @get_resource_type($res)) {
            throw new \TypeError(sprintf('Argument 1 passed to get_resource_id() must be of the type resource, %s given', get_debug_type($res)));
        }

        return (int) $res;
    }

    public static function preg_last_error_msg(): string
    {
        switch (preg_last_error()) {
            case \PREG_INTERNAL_ERROR:
                return 'Internal error';
            case \PREG_BAD_UTF8_ERROR:

$object instanceof ParameterBag => $this->describeContainerParameters($object, $options),
            $object instanceof ContainerBuilder && !empty($options['env-vars']) => $this->describeContainerEnvVars($this->getContainerEnvVars($object), $options),
            $object instanceof ContainerBuilder && isset($options['group_by']) && 'tags' === $options['group_by'] => $this->describeContainerTags($object, $options),
            $object instanceof ContainerBuilder && isset($options['id']) => $this->describeContainerService($this->resolveServiceDefinition($object, $options['id']), $options, $object),
            $object instanceof ContainerBuilder && isset($options['parameter']) => $this->describeContainerParameter($object->resolveEnvPlaceholders($object->getParameter($options['parameter'])), $options),
            $object instanceof ContainerBuilder && isset($options['deprecations']) => $this->describeContainerDeprecations($object, $options),
            $object instanceof ContainerBuilder => $this->describeContainerServices($object, $options),
            $object instanceof Definition => $this->describeContainerDefinition($object, $options),
            $object instanceof Alias => $this->describeContainerAlias($object, $options),
            $object instanceof EventDispatcherInterface => $this->describeEventDispatcherListeners($object, $options),
            \is_callable($object) => $this->describeCallable($object, $options),
            default => throw new \InvalidArgumentException(sprintf('Object of type "%s" is not describable.', get_debug_type($object))),
        };

        if ($object instanceof ContainerBuilder) {
            $object->getCompiler()->getServiceReferenceGraph()->clear();
        }
    }

    protected function getOutput(): OutputInterface
    {
        return $this->output;
    }

private function parseController(array|object|string|null $controller): array|string
    {
        if (\is_string($controller) && str_contains($controller, '::')) {
            $controller = explode('::', $controller);
        }

        if (\is_array($controller)) {
            try {
                $r = new \ReflectionMethod($controller[0], $controller[1]);

                return [
                    'class' => \is_object($controller[0]) ? get_debug_type($controller[0]) : $controller[0],
                    'method' => $controller[1],
                    'file' => $r->getFileName(),
                    'line' => $r->getStartLine(),
                ];
            } catch (\ReflectionException) {
                if (\is_callable($controller)) {
                    // using __call or __callStatic                     return [
                        'class' => \is_object($controller[0]) ? get_debug_type($controller[0]) : $controller[0],
                        'method' => $controller[1],
                        'file' => 'n/a',

/** * @param bool|string $ignoreErrors Whether errors should be ignored; pass "not_found" to ignore only when the loaded resource is not found */
    public function import(mixed $resource, string $type = null, bool|string $ignoreErrors = false, string $sourceResource = null, $exclude = null): mixed
    {
        $args = \func_get_args();

        if ($ignoreNotFound = 'not_found' === $ignoreErrors) {
            $args[2] = false;
        } elseif (!\is_bool($ignoreErrors)) {
            throw new \TypeError(sprintf('Invalid argument $ignoreErrors provided to "%s::import()": boolean or "not_found" expected, "%s" given.', static::class, get_debug_type($ignoreErrors)));
        }

        try {
            return parent::import(...$args);
        } catch (LoaderLoadException $e) {
            if (!$ignoreNotFound || !($prev = $e->getPrevious()) instanceof FileLocatorFileNotFoundException) {
                throw $e;
            }

            foreach ($prev->getTrace() as $frame) {
                if ('import' === ($frame['function'] ?? null) && is_a($frame['class'] ?? '', Loader::class, true)) {

protected $pool;
    private array $calls = [];

    public function __construct(AdapterInterface $pool)
    {
        $this->pool = $pool;
    }

    public function get(string $key, callable $callback, float $beta = null, array &$metadata = null): mixed
    {
        if (!$this->pool instanceof CacheInterface) {
            throw new \BadMethodCallException(sprintf('Cannot call "%s::get()": this class doesn\'t implement "%s".', get_debug_type($this->pool), CacheInterface::class));
        }

        $isHit = true;
        $callback = function DCacheItem $item, bool &$save) use ($callback, &$isHit) {
            $isHit = $item->isHit();

            return $callback($item, $save);
        };

        $event = $this->start(__FUNCTION__);
        try {

/** * @return array */
    public static function castThrowingCasterException(ThrowingCasterException $e, array $a, Stub $stub, bool $isNested)
    {
        $trace = Caster::PREFIX_VIRTUAL.'trace';
        $prefix = Caster::PREFIX_PROTECTED;
        $xPrefix = "\0Exception\0";

        if (isset($a[$xPrefix.'previous'], $a[$trace]) && $a[$xPrefix.'previous'] instanceof \Exception) {
            $b = (array) $a[$xPrefix.'previous'];
            $class = get_debug_type($a[$xPrefix.'previous']);
            self::traceUnshift($b[$xPrefix.'trace'], $class, $b[$prefix.'file'], $b[$prefix.'line']);
            $a[$trace] = new TraceStub($b[$xPrefix.'trace'], false, 0, -\count($a[$trace]->value));
        }

        unset($a[$xPrefix.'previous'], $a[$prefix.'code'], $a[$prefix.'file'], $a[$prefix.'line']);

        return $a;
    }

    /** * @return array */

    public function all(string $key = null): array
    {
        if (null === $key) {
            return $this->parameters;
        }

        if (!\is_array($value = $this->parameters[$key] ?? [])) {
            throw new BadRequestException(sprintf('Unexpected value for parameter "%s": expecting "array", got "%s".', $key, get_debug_type($value)));
        }

        return $value;
    }

    /** * Returns the parameter keys. */
    public function keys(): array
    {
        return array_keys($this->parameters);
    }

private function __construct()
    {
    }

    private static function getPrettyName(callable $callback): string
    {
        if (\is_string($callback)) {
            return $callback;
        }

        if (\is_array($callback)) {
            $class = \is_object($callback[0]) ? get_debug_type($callback[0]) : $callback[0];
            $method = $callback[1];
        } elseif ($callback instanceof \Closure) {
            $r = new \ReflectionFunction($callback);

            if (str_contains($r->name, '{closure}') || !$class = \PHP_VERSION_ID >= 80111 ? $r->getClosureCalledClass() : $r->getClosureScopeClass()) {
                return $r->name;
            }

            $class = $class->name;
            $method = $r->name;
        } else {

/** * @internal */
    public static function stream(HttpClientInterface $client, iterable $responses, ?float $timeout): \Generator
    {
        $wrappedResponses = [];
        $traceableMap = new \SplObjectStorage();

        foreach ($responses as $r) {
            if (!$r instanceof self) {
                throw new \TypeError(sprintf('"%s::stream()" expects parameter 1 to be an iterable of TraceableResponse objects, "%s" given.', TraceableHttpClient::class, get_debug_type($r)));
            }

            $traceableMap[$r->response] = $r;
            $wrappedResponses[] = $r->response;
            if ($r->event && !$r->event->isStarted()) {
                $r->event->start();
            }
        }

        foreach ($client->stream($wrappedResponses, $timeout) as $r => $chunk) {
            if ($traceableMap[$r]->event && $traceableMap[$r]->event->isStarted()) {

if (\is_array($callable)) {
                $callable[0] = $parameterBag->resolveValue($callable[0]);

                if ($callable[0] instanceof Reference) {
                    $callable[0] = $this->doGet((string) $callable[0], $callable[0]->getInvalidBehavior(), $inlineServices);
                } elseif ($callable[0] instanceof Definition) {
                    $callable[0] = $this->createService($callable[0], $inlineServices);
                }
            }

            if (!\is_callable($callable)) {
                throw new InvalidArgumentException(sprintf('The configure callable for class "%s" is not a callable.', get_debug_type($service)));
            }

            $callable($service);
        }

        return $service;
    }

    /** * Replaces service references by the real service instance and evaluates expressions. * * @return mixed The same value with all service references replaced by * the real service instances and all expressions evaluated */

class StrictSessionHandler extends AbstractSessionHandler
{
    private \SessionHandlerInterface $handler;
    private bool $doDestroy;

    public function __construct(\SessionHandlerInterface $handler)
    {
        if ($handler instanceof \SessionUpdateTimestampHandlerInterface) {
            throw new \LogicException(sprintf('"%s" is already an instance of "SessionUpdateTimestampHandlerInterface", you cannot wrap it with "%s".', get_debug_type($handler), self::class));
        }

        $this->handler = $handler;
    }

    /** * Returns true if this handler wraps an internal PHP session save handler using \SessionHandler. * * @internal */
    public function isWrapper(): bool
    {

throw new InvalidArgumentException(implode('be static', $message));
        }

        if (!$rm->isPublic()) {
            throw new InvalidArgumentException(implode('be public', $message));
        }

        $default = $rm->invoke(null);

        if ('priority' === $indexAttribute) {
            if (!\is_int($default)) {
                throw new InvalidArgumentException(implode(sprintf('return int (got "%s")', get_debug_type($default)), $message));
            }

            return $default;
        }

        if (\is_int($default)) {
            $default = (string) $default;
        }

        if (!\is_string($default)) {
            throw new InvalidArgumentException(implode(sprintf('return string|int (got "%s")', get_debug_type($default)), $message));
        }

return $children;
    }

    public function count(): int
    {
        return \count($this->getValue());
    }

    public function getIterator(): \Traversable
    {
        if (!\is_array($value = $this->getValue())) {
            throw new \LogicException(sprintf('"%s" object holds non-iterable type "%s".', self::class, get_debug_type($value)));
        }

        yield from $value;
    }

    /** * @return mixed */
    public function __get(string $key)
    {
        if (null !== $data = $this->seek($key)) {

        $listeners = [];
        $entryPoints = [];

        foreach ($this->getSortedFactories() as $factory) {
            $key = str_replace('-', '_', $factory->getKey());

            if (isset($firewall[$key])) {
                $userProvider = $this->getUserProvider($container, $id, $firewall, $key, $defaultProvider, $providerIds);

                if (!$factory instanceof AuthenticatorFactoryInterface) {
                    throw new InvalidConfigurationException(sprintf('Authenticator factory "%s" ("%s") must implement "%s".', get_debug_type($factory), $key, AuthenticatorFactoryInterface::class));
                }

                if (null === $userProvider && !$factory instanceof StatelessAuthenticatorFactoryInterface) {
                    $userProvider = $this->createMissingUserProvider($container, $id, $key);
                }

                $authenticators = $factory->createAuthenticator($container, $id, $firewall[$key], $userProvider);
                if (\is_array($authenticators)) {
                    foreach ($authenticators as $authenticator) {
                        $authenticationProviders[] = $authenticator;
                        $entryPoints[] = $authenticator;
                    }