Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
Finds whether a variable is a resource
<?php is_resource(mixed $value): bool<?php $adapter = $this->adapter();
$adapter->writeStream('path.txt', $writeStream, new Config());
if (is_resource($writeStream)) {
fclose($writeStream);
};
$readStream = $adapter->readStream('path.txt');<?php private function assertIsResource($contents): void
{
if (is_resource($contents) === false) {
throw new InvalidStreamProvided(
"Invalid stream provided, expected stream resource, received " . gettype($contents)
);<?php public function __destruct()
{
if (is_resource($this->connection)) {
@ftp_close($this->connection);
}
$this->connection = false;<?php private function connection()
{
start:
if ( ! is_resource($this->connection)) {
$this->connection = $this->connectionProvider->createConnection($this->connectionOptions);
}<?php rewind($writeStream);
$this->writeStream($path, $writeStream, $config);
} finally {
isset($writeStream) && is_resource($writeStream) && fclose($writeStream);
}
}<?php $visibility = $this->visibility($source)->visibility();
$this->writeStream($destination, $readStream, new Config(compact('visibility')));
} catch (Throwable $exception) {
if (isset($readStream) && is_resource($readStream)) {
@fclose($readStream);
}
throw UnableToCopyFile::fromLocationTo($source, $destination, $exception);<?php }
if ( ! is_resource($stream)) {
throw UnableToReadFile::fromLocation($path, 'Downloaded object does not contain a file resource.');
}<?php $stream = stream_with_contents('something');
(new LocalFilesystemAdapter('/'))->writeStream('/cannot-create-a-file-here', $stream, new Config());
} finally {
isset($stream) && is_resource($stream) && fclose($stream);
}
}<?php try {
$this->mountManager->writeStream('first://file.txt', $handle);
} finally {
is_resource($handle) && fclose($handle);
}
}<?php $visibility = $this->visibility($source)->visibility();
$this->writeStream($destination, $readStream, new Config(compact('visibility')));
} catch (Throwable $exception) {
if (isset($readStream) && is_resource($readStream)) {
@fclose($readStream);
}
throw UnableToCopyFile::fromLocationTo($source, $destination, $exception);<?php $visibility = $this->visibility($source)->visibility();
$this->writeStream($destination, $readStream, new Config(compact('visibility')));
} catch (Throwable $exception) {
if (isset($readStream) && is_resource($readStream)) {
@fclose($readStream);
}
throw UnableToCopyFile::fromLocationTo($source, $destination, $exception);<?php $this->runScenario(function () {
$handle = stream_with_contents('contents');
$this->adapter()->writeStream('some/path.txt', $handle, new Config([Config::OPTION_VISIBILITY => Visibility::PUBLIC]));
is_resource($handle) && @fclose($handle);
});
}