src/Cache/Simple/AbstractAdapter.php
protected function prefixValue(&$key)
	{
		if (null === ($version = $this->namespaceVersion)) {
			$version = $this->getNamespaceVersion();
		}

		// namespace#[version]#key
		$key = $this->namespace . self::SEPARATOR .
			$version . self::SEPARATOR . $key;
	}
protected function prefixValue(&$key)
	{
		if (null === ($version = $this->namespaceVersion)) {
			$version = $this->getNamespaceVersion();
		}

		// namespace#[version]#key
		$key = $this->namespace . self::SEPARATOR .
			$version . self::SEPARATOR . $key;
	}
protected function prefixValue ( & $ key ) { if ( null === ( $ version = $ this -> namespaceVersion ) ) { $ version = $ this -> getNamespaceVersion ( ) ; } // namespace#[version]#key $ key = $ this -> namespace . self :: SEPARATOR . $ version . self :: SEPARATOR . $ key ; }
Add namespace prefix on the key.

@param string $key
Add namespace prefix on the key .