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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6
7
class InvalidFeedException extends RuntimeException
8
{
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/**
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* @return InvalidFeedException
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*/
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public static function invalidJsonException()
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{
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return new self('Invalid JSONFeed string');
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}
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/**
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* @return InvalidFeedException
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*/
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public static function undefinedVersionException()
21
{
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return new self('Undefined JSONFeed version');
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}
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/**
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* @param string $property
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* @return InvalidFeedException
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*/
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public static function invalidFeedProperty($property)
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{
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return new self(sprintf('Invalid feed property "%s"', $property));
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}
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/**
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* @param string $property
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* @return InvalidFeedException
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*/
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public static function invalidItemProperty($property)
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{
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return new self(sprintf('Invalid item property "%s"', $property));
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}
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/**
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* @param string $property
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* @return InvalidFeedException
46
*/
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public static function invalidAuthorProperty($property)
48
{
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return new self(sprintf('Invalid author property "%s"', $property));
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: