Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php | ||
| 14 | class LegacyDriver implements Driver | ||
| 15 | { | ||
| 16 | |||
| 17 | /** @var \Buttress\Concrete\Client\Connection\Connection */ | ||
| 18 | private $connection; | ||
| 19 | |||
| 20 | /** @var \Buttress\Concrete\Service\Package\PackageItemFactory */ | ||
| 21 | private $factory; | ||
| 22 | |||
| 23 | public function __construct(Connection $connection, PackageItemFactory $factory) | ||
| 28 | |||
| 29 | /** | ||
| 30 | * @param \Buttress\Concrete\Service\Package\PackageItem $item | ||
| 31 | * @return Package|null | ||
| 32 | */ | ||
| 33 | private function getPackage(PackageItem $item) | ||
| 40 | |||
| 41 | /** | ||
| 42 | * Install a package | ||
| 43 | * | ||
| 44 | * @param \Buttress\Concrete\Service\Package\PackageItem $item | ||
| 45 | * @return \Buttress\Concrete\Service\Result | ||
| 46 | */ | ||
| 47 | public function install(PackageItem $item) | ||
| 78 | |||
| 79 | /** | ||
| 80 | * Uninstall a package | ||
| 81 | * | ||
| 82 | * @param PackageItem $item | ||
| 83 | * @return \Buttress\Concrete\Service\Result | ||
| 84 | */ | ||
| 85 | public function uninstall(PackageItem $item) | ||
| 110 | |||
| 111 | /** | ||
| 112 | * Test a package for install | ||
| 113 | * | ||
| 114 | * @param PackageItem $package | ||
| 115 | * @return \Buttress\Concrete\Service\Result | ||
| 116 | */ | ||
| 117 | public function test(PackageItem $package) | ||
| 132 | |||
| 133 | /** | ||
| 134 | * Show information about a package | ||
| 135 | * | ||
| 136 | * @param PackageItem $package | ||
| 137 | * @return \Buttress\Concrete\Service\Result | ||
| 138 | */ | ||
| 139 | View Code Duplication | public function show(PackageItem $package, CLImate $cli) | |
| 149 | |||
| 150 | /** | ||
| 151 | * Get a list of package item objects | ||
| 152 | * @return PackageItem[] | ||
| 153 | * @throws \Buttress\Concrete\Exception\RuntimeException | ||
| 154 | */ | ||
| 155 | public function all() | ||
| 167 | } | ||
| 168 | 
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: