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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9
10
/**
11
* Contract for a driver that is capable of converting DBAL driver exceptions into standardized DBAL driver exceptions.
12
*/
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interface ExceptionConverterDriver
14
{
15
/**
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* Converts a given DBAL driver exception into a standardized DBAL driver exception.
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*
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* It evaluates the vendor specific error code and SQLSTATE and transforms
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* it into a unified {@link Doctrine\DBAL\Exception\DriverException} subclass.
20
*
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* @param string $message The DBAL exception message to use.
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* @param DriverExceptionInterface $exception The DBAL driver exception to convert.
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*
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* @return DriverException An instance of one of the DriverException subclasses.
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*/
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public function convertException(string $message, DriverExceptionInterface $exception) : DriverException;
doctrine /
dbal
Sergei Morozov
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: