and let?s assume the following content of Bar.php:
// Bar.phpnamespaceOtherDir;useSomeDir\Foo;// This now conflicts the class OtherDir\Foo
If both files OtherDir/Foo.php and SomeDir/Foo.php are 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.php
However, as OtherDir/Foo.php does not necessarily have to be loaded and the
error is only triggered if it is loaded before OtherDir/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:
// Bar.phpnamespaceOtherDir;useSomeDir\FooasSomeDirFoo;// There is no conflict anymore.
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8
use ReflectionParameter;
9
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final class NullVisitor implements VisitorInterface
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{
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/** @inheritDoc */
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public function visitDependency(
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NewInstance $newInstance,
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?string $postConstruct,
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bool $isSingleton
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) {
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$newInstance->accept($this);
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return true;
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}
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/** @inheritDoc */
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public function visitProvider(
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Dependency $dependency,
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string $context,
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bool $isSingleton
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) {
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}
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/** @inheritDoc */
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public function visitInstance($value)
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{
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}
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/** @inheritDoc */
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public function visitAspectBind(Bind $aopBind)
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{
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}
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/** @inheritDoc */
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public function visitNewInstance(
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string $class,
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SetterMethods $setterMethods,
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?Arguments $arguments,
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?AspectBind $bind
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) {
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$setterMethods->accept($this);
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if ($arguments) {
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$arguments->accept($this);
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}
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}
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/** @inheritDoc */
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public function visitSetterMethods(
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array $setterMethods
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) {
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foreach ($setterMethods as $setterMethod) {
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$setterMethod->accept($this);
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}
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}
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/** @inheritDoc */
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public function visitSetterMethod(string $method, Arguments $arguments)
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are 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.php
However, as
OtherDir/Foo.php
does 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: