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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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12
13
/**
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* Class WebSocket - WebSocket wrapper that queues messages while the connection is being established.
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*/
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final class WebSocket extends Subject
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{
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private $ws;
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private $sendSubject;
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4
public function __construct(string $url, bool $useMessageObject = false, array $subProtocols = [], LoopInterface $loop = null, Resolver $dnsResolver = null)
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{
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4
$this->sendSubject = new ReplaySubject();
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4
$this->ws = new Client($url, $useMessageObject, $subProtocols, $loop, $dnsResolver);
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4
}
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public function onNext($value)
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{
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$this->sendSubject->onNext($value);
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}
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1
protected function _subscribe(ObserverInterface $observer): DisposableInterface
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{
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1
return $this->ws
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1
->do(function ($ms) {
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// Replay buffered messages onto the MessageSubject
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$this->sendSubject->subscribe($ms);
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// Now that the connection has been established, use the message subject directly.
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$this->sendSubject = $ms;
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1
})
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1
->finally(function () {
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// The connection has closed, so start buffering messages util it reconnects.
php-api-clients /
pusher
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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: