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<?php |
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namespace Helldar\Support\Helpers; |
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use Helldar\Support\Facades\Helpers\Arr; |
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use Helldar\Support\Facades\Helpers\Is; |
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use Helldar\Support\Facades\Helpers\Reflection; |
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use ReflectionClass; |
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final class Instance |
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{ |
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/** |
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* Checks if the item being checked inherits from other objects and interfaces. |
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* |
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* @param object|string $haystack |
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* @param string|string[] $needles |
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* |
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* @return bool |
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*/ |
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public function of($haystack, $needles): bool |
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{ |
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if (! $this->exists($haystack)) { |
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return false; |
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} |
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$reflection = $this->resolve($haystack); |
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$classname = $this->classname($haystack); |
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foreach (Arr::wrap($needles) as $needle) { |
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if (! $this->exists($needle)) { |
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continue; |
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} |
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if ( |
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$haystack instanceof $needle || |
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$classname === $this->classname($needle) || |
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$reflection->isSubclassOf($needle) || |
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($reflection->isInterface() && $reflection->implementsInterface($needle)) |
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) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Extract the trailing name component from a file path. |
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* |
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* @param object|string $class |
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* |
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* @return string|null |
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*/ |
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public function basename($class): ?string |
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{ |
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$class = $this->classname($class); |
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return basename(str_replace('\\', '/', $class)) ?: null; |
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} |
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/** |
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* Gets the class name of the object. |
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* |
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* @param object|string|null $class |
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* |
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* @return string|null |
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*/ |
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public function classname($class = null): ?string |
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{ |
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if (Is::object($class)) { |
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return get_class($class); |
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} |
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return class_exists($class) || interface_exists($class) ? $class : null; |
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} |
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/** |
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* Checks if the object exists. |
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* |
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* @param object|string $haystack |
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* |
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* @return bool |
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*/ |
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public function exists($haystack): bool |
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{ |
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if (Is::object($haystack)) { |
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return true; |
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} |
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return Is::string($haystack) ? class_exists($haystack) || interface_exists($haystack) : false; |
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} |
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/** |
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* Calls a method on an object. |
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* |
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* @param object $object |
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* @param string $method |
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* @param null $default |
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* |
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* @return false|mixed|null |
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*/ |
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public function call($object, string $method, $default = null) |
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{ |
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if (Is::object($object) && method_exists($object, $method)) { |
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return call_user_func([$object, $method]); |
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} |
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return $default; |
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} |
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/** |
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* Calls the object's methods one by one and returns the first non-empty value. |
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* |
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* @param object $object |
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* @param string|string[] $methods |
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* @param null $default |
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* |
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* @return false|mixed|null |
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*/ |
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public function callWhen($object, $methods, $default = null) |
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{ |
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foreach (Arr::wrap($methods) as $method) { |
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if ($value = $this->call($object, $method)) { |
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return $value; |
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} |
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} |
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return $default; |
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} |
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/** |
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* Calls a method of an object that matches a class. |
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* |
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* @param array $map |
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* @param object $value |
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* @param null $default |
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* |
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* @return false|mixed|null |
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*/ |
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public function callOf(array $map, $value, $default = null) |
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{ |
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foreach ($map as $class => $method) { |
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if (Is::object($value) && $this->of($value, $class)) { |
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return $this->call($value, $method, $default); |
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} |
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} |
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return $default; |
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} |
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/** |
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* Creates a ReflectionClass object. |
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* |
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* @param object|ReflectionClass $class |
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* |
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* @return \ReflectionClass |
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*/ |
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12 |
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protected function resolve($class): ReflectionClass |
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{ |
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return Reflection::resolve($class); |
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} |
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} |
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andrey-helldar /
support
Loading history...
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: